Monday, August 31, 2009

Talk: India and the Digital Revolution

I delivered a talk on "India and the Digital Revolution" at the Institution of Engineers (India) Dharwad Centre on Aug 21, 2009 and greatly enjoyed interacting with the audience. Below are a couple of reports that appeared in the press and blogs......

http://timesofindia.indiatimes.com/NEWS/City/Hubli/Taking-a-peek-into-digital-field/articleshow/4946374.cms

Taking a peek into digital field
TNN 29 August 2009,
DHARWAD: India contributed significantly to the digital revolution in the 90s, though it did miss electronic revolution in the 60s, said Shivanand Kanavi, vice-president (special projects), Tata Consultancy Services (Mumbai).
Delivering a special lecture at the Institution of Engineers' local centre here, he narrated the comforts achieved because of digital revolution in the fields of industry, trade, transportation, education, banking sectors, administration, medicine and communication, and others.
"The digital revolution provided global platform for research and development," he said, and highlighted its impact on society through media and entertainment. He made remarks about the contributions of Indians to the digital field.
The lecture was followed by an interaction with audience in which questions of common concern like opportunities for youngsters, future scope in chip technology, etc, were answered.
Local centre chairman Mahesh Hiremath, Prof. Ramesh Chakrasali and honorary secretary prof. Mrityunjaya Kappali were present.



http://reportingweb.blogspot.com
Saturday, August 22, 2009
India and Digital Revolution: A Talk by Mr. Shivanand Kanavi, VP, Special projects, TCS
The Institution of Engineers, India ( IEI), Dharwad Local chapter organized a talk on "India and Digital Revolution" by Mr. Shivanand Kanavi, Vice President, Special Projects, TCS. Mumbai, on 21st August, 2009 at Balekundary, Hall. Mr. Kanavi has an illustrious career which took him to different domains such as research at IIT, teaching, Business Journalism at Business India. He joined TCS in 2004.
The topic of talk " India and Digital Revolution" was a very thoughtful choice and Kanavi did a great justice to it. His talk composed of two parts- first dealing with the technological underpinnings of digital revolution and its impact on India and second part was about Indians who contributed heavily in shaping digital revolution. The impact of digital revolution in India was termed " fall out" by the presenter and he listed the following as the main areas that benefited Indian- people, market, business.
Indian IT
Chip Design
Telecommunication
Global Platform for R & D
Centre for Engineering Design
Media and entertainment
Governance
The root of all positive impact of digital revolution is due to advancements in telecommunication. The developments made it possible to separate design and fabrication functions and get them done anywhere in the world. The Indian talent took this opportunity very well and now "India strategy" is central theme to any major business in the west.
The chip technology has become ubiquitous in its spread and virtually every tool that we use today contains a number of special purpose chips. For instance, a modern day car has a number of chips for steering control, wheel etc. Companies such as Texas Instruments ( TI) are doing a lot of R & D work and chip design in India a lot of cutting edge work by GE and others is being done in aerospace technologies in India and so on.
Historically India had missed earlier revolutions - Industrial ( due to British rule ) and electronic revolution - however, the telecommunication industry made us to catch up and join the revolution in later stage. 80% of the mobile sets used world wide use DSP technology designed by TI. GE has established a R & D centre in Bangalore that contributes upto 40% research work in aircraft engine design.
The design and development of Ferrari used in Formula -1 is designed by TCS. Tata's Nano project proved that with just one fourth of research budget allocated in the west, one can design and deliver a car from concept to market.The contribution of ISRO towards making India a strong player in world is very great.Starting from its SITE program for distance education in 70's, ISRO has technologically supported Indian march including introduction of nation wide colour broadcasting during ASIAN games in 1982.
The devlopments in digital technology have made a great contribution in changing the way government runs it services. The land record computerization has resulted easing of many services. The use of IT in central government departments such as company affairs has enabled them to handle data of more that 6,00,000 companies very efficiently and in a timely manner. The IT use in passport issuance has greatly simplied the very process and it will be possible to get passport within three days of police clearance.
Similar changes have been planned for judiciary, medical departments. Digital library is planned as solution to reach wider learning audience.
Implementing DEMAT mode of shares and computerized transcations in stock market is another example of IT in action. The NSE in India is one of the busiest stock exchange in the world and its systems have been built using economic hardware and software components. The Role of IT in banking is still more stupendous- SBI with more than 14,000 branches has been successfully using IT to serve its customers in every nook and corner of the nation.
The Indian railways took the path of computerization without resorting to massive lay off in the ‘80s and its success has brought a sea change in the public perception of computerization. In summary IT has been playing a pivotal role in Indian current development context.
The second part of the talk was profiles of some perosnalities that contributed in the making of digital revolution. The list included J C Bose, Amar Bose of Bose System fame, Raj Reddy, Praveen Chaudhary, Arun Netravali, F. C Kohli, Abhay Bhushan and many more.
Shivanand Kanavi's talk was one of the most informative and inspiring talk that I had heard in the recent past. Thanks Sir

Saturday, August 29, 2009

Rajeev Motwani: Interview 2002


Rajeev Motwani unplugged


(Excerpts appeared in India Abroad, Aug 7, 2009)


Shivanand Kanavi, interviewed Rajeev Motwani in July 2002, while researching for his book, Sand to Silicon: The amazing story of digital technology. Here are the edited excerpts:


SK: Tell me about your childhood and growing up and the influences that shaped you.

RM: One of the shaping influences was that my father was in the Army and that meant not being in one place for too long, not more than 2 years. My parents were great believers in education so where ever we were they sent me to the best possible school available. All of them were missionary schools and had many inspiring teachers. I also always wanted to be a mathematician or a scientist at any rate. Then I decided that I did not want to be an Einstein but wanted to be a Gauss. That was because I was an avid reader and I used to read a lot of books. My parents had given me a lot of ten great scientists, 5 great mathematicians kind of popular science books and biographies which were very inspiring. I was not reading about other kind of heroes. That is what I wanted to become. Fortunately I was good at Maths. I also did not graduate from school. I used to study in St Columbus, Delhi, where they had just switched from 11 to 10+2 and IITs gave us permission to join them after 11th without completing 10+2. It was just for that year. I did have problems when getting permanent residence here because I had a PhD but did not have a school certificate.
IIT Kanpur at that time had for the first time an undergraduate program in computer science B.Tech. I really wanted to be a mathematician and I did not have any idea what a computer was. My parents were hesitant because they did not know how a mathematician would make money and support a family. Basically I was forced to do Computer Science. I then realized that Computer Science was very closely related to mathematics. Some of the faculty in IIT Kanpur were also a shaping influence for me. One of the people who really influenced me was Kesav Nori. At that time there was Prof Rajaraman, R.Shankar, Sahasrabuddhe, Somnath Biswas, Kesav Nori, Harish Karnik to name a few. I could not have constructed a better environment for doing computer science in India. It was an amazing confluence of people.

SK: But they already had a masters programme for a long time.

RM: Nori had just come back from Europe. He stayed for a year or so and taught the first course in programming. He was a wonderful teacher and used to tell great stories. We started out programming on comp cards, which you probably remember but most other people don’t. That time we used to work on DEC machines and Vac machines with a terminal. We then had to use a login and a password. Nori could have made up random passwords, or give names of flowers but instead he gave names of famous computer scientists as passwords. Somebody had Don Knuth as password (who is down the hall).
I went and did research to see who these guys were. Bob Floyd was my password. He was also at Stanford and passed away recently. He was one of the mentors of this field called analysis of algorithms. He also did the early work on randomized algorithms. I ended up eventually did some work on randomized algorithms. The very first chapter of my book on randomized algorithms was on Floyd’s algorithm. It is hard to believe that because he was my password this happened. But there must have been some connection! That was the wonderful thing about Nori who was a very inspiring person. He did more than just teaching. He created such a wonderful ecosystem and developed a personal connection with his students.

There are a lot of very good schools not only in the US but elsewhere. Going by what I have seen in this country and going by what I have learnt out there, definitely IIT Kanpur was one of the top five schools in computer science education.
I finished all that. Everybody else was coming to the US for PhD or Masters or whatever. Actually I did not want to come here for reasons I don’t quite understand now. I remember getting a job at DCM Data Products because getting visas at that time (1983) was a big problem. I was then interviewed at Wipro by the top three guys. It was a small outfit then.

SK: Was it Ashok Narasimhan?

RM: It could have been. I met Ashok Narasimhan last year when he was doing a company called July Systems which I was considering investing in, but he did not remember me. The interviewer said we would love to give you a job looking at your track record but isn’t every one with your kind of back ground going to the US on a scholarship? So have you applied to US? I said yes I have an offer from Berkley. He asked do you have a scholarship? I said yes but I am not sure if I will get a visa. He said I did my MBA from Stanford and believe me you would want to go there.
If you come back we will give you a job.

Berkley was very different from Stanford. It was a very politically oriented university. You could call it the JNU of the US because it was highly politically charged. Ronald Reagan was the president then. So then for 3 years I had a blast. Did not do any work and fully enjoyed the environment. My advisor was Richard Carp, who won the Turing award – which is like the Nobel Prize in computer science in 1985-86, when I had finished those 3 years. It was then that I thought that I was not doing anything and letting this man down. So from then on I worked really hard and was quite productive for the next two years.


SK: What did you work on?


RM: My PhD thesis was on randomized or probabilistic analysis of problems in optimization. Problems in network flows, graph matchings and so on. These are general formulations of a large class of problems.

SK: Traffic problems?

RM: Yes traffic problems or network routing. Routers on network, are basically implementing matching algorithms in some form, that is at the micro level. At the macro level flow of packets on networks. My advisor, Dick Carp was a pioneer in that field. These problems were hard and so I was trying to find a heuristic faster and better solution to get the right optimal value. So that was what my thesis on.

SK: People in the telecom sector had used such things.

RM: The technique itself had been used to some degree. In fact pioneered by Carp. Called NP- completeness. It says that some problems are essentially impossible to solve. They cannot be solved exactly. So the question is if you can solve the problem approximately with some assumptions such that the instance of the problem or the input is randomly distributed with known distribution. That’s what I was trying to do.

SK: Why random? Connection with Gauss again?

RM: Well the reason being that once you assume that there is distribution, then you can give some structure to the problem and you can use some probabilistic techniques to say that on a certain fraction of the inputs I’m still going to get screwed up but if I bound the fraction on which I wont perform well and with a typical example I will get a good solution. This is a problem with the theory of algorithms as it exists. In those days everything was taken from the worst case point of view which means that if I want to route a flow on a network I can always construct an example where you are unable to route the flow and perform badly. But the real flows patterns that emerge are not the worst case patterns. They have some niceness to it and things do get routed. Randomness is a way of capturing that by saying that in distribution there is a probability that you will get bad flows but many times you will also get good flows and that is good enough.

So I was doing all this and was about to graduate and was wondering what to do next. To go back to India or stay in the US because again other people made the decisions for me, Don Knuth, one of the founding fathers of comp science, also one of Nori’s passwords, came over to meet my advisor and told him that they wanted to hire someone young for algorithms at Stanford. So Carp suggested my name. I was then invited by Knuth at Stanford for lunch during a dinner hosted for him at Berkley. I was wondering why this great man wants to have lunch with me. So I went to Stanford and met him at a restaurant near the church at the quad. He then told me to be with Stanford for a year and see if they liked me and vice versa after which if things worked out well they would hire me.
For the first year I was a visiting faculty. I did not want that job as I was getting better offers and permanent jobs at other places but since it was an offer by Knuth it was hard to turn down. It’s the same as Einstein inviting you to Princeton for a job. So then I came and taught at Stanford and started some courses and had a very good time.
I was then given a permanent offer at Stanford as they liked what they saw. It was 3 – 4 months after I finished my 1 year at Stanford that I was to get married. My wife was shifting from LA to Berkley. Then we saw that Stanford was a good place and decided to stay in Stanford.

SK: What have been your major research interests here at Stanford?

RM: Teaching has been a major preoccupation first of all. I enjoy teaching. The reason I was in Stanford was that there were many faculty retiring like Don Knuth and so they needed someone to fill in and walk in their footsteps. So since so many people were retiring or leaving there was a vacuum created here. Also there were a lot of courses to be taught. I ended up teaching all these courses. I even made my own courses like topography and algorithms and complexity theory. I did not get enough sleep as I did not know a lot of these areas but I did learn a lot through teaching these things. I am a perfectionist and still get nervous to talk before a class till today. I get nervous, what if someone asks me a question and I find myself unable to answer it. So for this reason I always over prepare.
So this nervousness has taught me more than what I learnt as a student. I now have worked in many different areas and it broadened me up. I have the tendency of getting bored very easily and so if I stay in one area too long I quickly move over to another area. My threshold of working in one particular area is about 5 years.
Some of the non obvious areas are robotics. I was inspired by Jean Claude Latombe from France who was in this Dept. He told me that there were a lot of algorithms in robotics which are needed to plan the actions of the robot. Robots in a generic sense could include cars and or any mechanism which has to plan a motion to move about. It’s like the human body wanting to get up from this chair and walk to the door. It may seem like a triggered action but there are a lot of complexities and degree of freedom involved. In the human body itself every joint in the body gives a degree of freedom. Each can be controlled independently by setting the angle of each joint to accomplish the task. The reason why humans have this degree of freedom is for them to operate in the real world and do a lot of things. The control of these degrees of motions becomes very high. Although we live in a three dimensional world, the robotic movements and freedom work in a higher dimensional surrounding. So if you send a space craft to Mars, then you have to be sure by planning intelligence that it goes the right way without hitting anything along the path. This requires very high dimensional planning. It is like having a starting point A and end point B in space, and moving from A to B without being hit by any obstacles. The same task would be easier with 2 points on the table. So the space that we are talking about is not the physical space but the space of complex possible motions.

SK: There are constraint surfaces?

RM: They become very complex constraint surfaces in high dimensional geometry. I learnt this space for a few months and realized that this problem could be solved through randomization. It is very hard to plan motion in high dimensional complex places while it is very easy to pick a random point in space and figure out if it is going to hit any obstacle in space or if it is a free part of space.
If you pick many random points it is very easy to sample but very hard to find a free point in that space. If you find many free points, then you hook them together and make a path. The path may not be the smoothest but you can smooth it later. So that was the fundamental idea we used. But to realize this and analyse it, apply it and turn it into real systems is a lot of work and I worked for 5 years on this space, putting high dimension geometry and randomization together. Jean Claude was a systems guy while I was the theoretical guy. So the students implemented some of these things and these were used at places like GM in their robot assembly lines.
None of these things were used in isolation. The actual robots do many things and one of the techniques they use is this. They have many softwares running them. That was the first time I did something mathematical but practical. I suddenly realised that I could operate in the real world after seeing the robots move and perform using my algorithms. I could now move over from the paper pencil world. I credit Stanford for creating an environment where people in different areas can work together – the whole is greater than the sum of its parts. So I spend one third of my time in doing my work in a theoretical and mathematical way and then I collaborate with people. I may collaborate with someone in networking or databases or compilers and use my skills to solve their problems. But I need them to use my mathematical problems to solve the real world problems. It has been a good synergy so far.
I got the Godel prize for my theoretical work. It was a very theoretical work. In science it is said that one guy stands on the shoulders of another and another on his and so on. The guy on top gets the prize. In my case I was on the tip of the pyramid and so got the prize. Everyone forgets the pyramid. In my case we had worked and come up with excellent results before my paper which we used and leveraged to prove what we proved. We proved that you take a mathematical theorem then there is a way of writing the proof of that theorem and there is a way to easily verify for correctness. Verify correctness means for eg - Take the theorem and the proof and probe the proof in 7 places, read what is written there and then give an answer if the proof is correct or incorrect. The answer would be correct to as high a probability as you want. Random sampling of 7 places. Irrespective of the length of the proof. They would work for any given proof provided it is in a specific format and a particular mathematical language.

SK: What makes you say that the whole is correct?

RM: That is probably too hard to explain. The basic idea is that of an error correcting code. The code takes a sentence or a sequence of bits, 0’s and 1’s and replaces it by a slightly longer string of 0’s and 1’s , but there is some redundancy built into it.

SK: It is like writing a checksum.

RM: It is exactly like writing a checksum. I am giving a very simple example.
There are ways of error correcting where you rewrite small bits of the whole thing. It may not even look like the original thing but from that you can extract the original message. So take a proof of a mathematical theorem and write it in an error correcting code. If there are a large no of errors then by random sampling of a few points in that I will detect that there a large no of errors. So I will dismiss the group as nonsense if there are a large no of errors. But if there are small no of errors then I can correct it because I know there is a correct version of this. So after sampling it if I find the number of errors to be small then I know that there is a good proof somewhere.

SK: So it is an existence theorem?

RM: It is random verifier. We over simplified it in this discussion, however the implications are important. Sometimes in mathematics you do things just for the sheer elegance of it and after we wrote this paper I learnt that Intel had a problem with pentium2. When you multiply 2 specific numbers on that p2 chip which was being used in all the desktops and laptops, the answer was wrong. An overflow perhaps. I got a call from Intel to ask me if there was any way they could use the verification technology. But it was not possible as I was a purely mathematical abstract trained whereas they needed a real system with 10 million gates on it where you had to do some checking. Very hard to translate it to this. But this did show the possibility of verifying errors in a complex system by doing a small amount of work. But it required the system to be written in a certain code which was the catch.
There is a wonderful mathematical theorem, I am quite proud of it, it is a combined effort of a lot of people in our field, and is one of the deeper pieces of mathematics which has been done in modern day computer science.
It turned out that implications of this are much more profound than the statement itself. It goes back to the motion of optimization problems we were discussing earlier where we were talking about the flow algorithms where we couldn’t get an exact answer because you can show that in a “polynomial” amount of time which is a measure of efficiency in computer science, one could not get an the exact answer. In my thesis I had looked at one particular way of getting around the problem which was to assume that the problem input itself was randomly distributed. And I was not faced with the bad cases alone but was faced with a distribution of cases; some good some bad. But on the average I would do ok. There is also some other way of tackling hard optimization problems which is to say that I still guarantee you the right answer but the right answer won’t be the optimal answer. So if you are trying to route the maximum no of circuits through your network, I will not route 100% routing but will route 95% and to get 100% is an impossible computation. So these are called “approximation algorithms”.
So for some large class of problems we faced, using this theorem we had the possibility of reaching an approximate answer but for some problems reaching the approximate answer was also not possible. That was one of the bigger breakthroughs in comp science. Carp and Cook from Berkley in 1971 came up with the theory of NP-completeness, which tries to describe why some problems can only be solved by reaching the approximate answer and not the optimum answer. Twenty years later as a consequence of this we said that for large subset of their problems not only is it not possible to get the optimal answer but also hard to get the approximate answer which means that there is no use trying to even solve these problems.
In science you have the family tree where people are followed by their advisors, juniors or siblings. Where each person follows up on another’s work thereby expanding it. Like the musical schools in India, where the Gharanas pass on the knowledge from one generation to the next. I have been a beneficiary in that kind of a system. To me it all came together very nicely. No one knows what happened underneath to build it up. A lot of people contributed to it. I was at the tip, a small part of it, towards the end point.
That has been my mathematical pinnacle. After that it has been downhill all the way (laughs). So I did this and robotics and compiler optimization. I did PLIW compiler optimization and then Pfizer wanted to fund research on computational drug design. And while finishing the work on random motion planning in robots we realised that molecules and robots actually behave in a very similar way.
What is a molecule? One model of molecule which we learn in chemistry in high school is atoms are like balls bound together by bonds thereby making a molecule. So for eg. a protein molecule which has about 30, 50 thousand atoms has to fold and form a shape for another protein molecule to come and bind on that fold. The place where it binds has the activity.

SK: They are called pharmacophores.

RM: Yes. This is basically drug design. It is all about figures folding and matching like a lock and key mechanism. We said we know how things fold, we know how degrees of freedom are created in high dimensional space. Let’s throw it at this problem. So Pfizer funded this research which went on for 2 – 3 years and we came up with software based on our theory and we added some new theory. On a particular approach, the project being called RAPID (Randomized Pharmacophore Identification for Drug Design). It went very well. I learnt a lot. It was an intriguing experience. I had to go back and learn my high school chemistry and biology and the other fun stuff. And the software that we made is being used by Pfizer labs for their drug design. Of course the problem is complex and needs more than one software. So due to confidentiality issues they didn’t tell us how our software was used or what drugs were made from it but you feel you have made a contribution to society instead of just doing formal mathematics which is hard to justify. It felt like we contributed to social welfare through mathematics.

SK: These techniques are mostly used by medicinal chemists. They have an intuition as to which molecules to use and how the binding would take place.

RM: Now they have a tool wherein they can enhance their intuition, do away with some things and focus on what they really want, which is what we allow them to do.

SK: It can be applied to catalysis and designing chemzymes as well right?

RM: Yes. We never got into that because by then the world wide web was coming up and I just got sucked into that. There was this guy Jeff Ullman, another one of the grand old men of computer science, who retired this year. He was in the office next to me and was in database. I was talking to him and a new student – Sergey Brin, and I remember at that time we were using Mosaic, and we were looking at the web and I was sitting there and thinking that we could randomize the web in some way because that was going to grow and become big and randomness was going to be important; though I did not know how and why. So I thought about doing random walks on the web and there was this problem of crawling on the web. At that time a search engine called Inktomi had just come out of Berkley. Excite and Yahoo had come out from Stanford so we had seen the first signs of all of this.
I remember going to Inktomi and searching for the word Inktomi and it could not find itself. I don’t know if that is still true but at that time if you went to Inktomi and typed in the word it said no results found. My Godelian past induced me to do these self referential queries but what amazed me was that this is a simple thing that people screw up on. So in the context of all this I was listening to some people from IBM talk on Data mining and Ullman had just introduced me to some problems in databases. I broke them down with a student and was getting pretty excited about the concept of databases. Ullman took me for this talk on data mining which sounded very interesting to me. So Sergey and Ullman and we decided to do some data mining on the web because it sounded like a nice mix. We then formed this research group called Midas which stood for Mining Data At Stanford. We did a lot of good work on data mining. Then there was this guy called Larry Page who wasn’t really a part of the Midas group but was a friend of Sergey and would show up for these meetings. He was working on this very cool idea of doing random walks on the web.
When I understood what the World Wide Web would look like, I knew I had to somehow force randomness into it. When Larry showed us what he was doing, it was like a complete epiphany, we thought it was absolutely the right thing to do. So Sergey got involved and it became a sub group inside Midas. I was really a good sounding board for Sergey and Larry and I could relate to what they were doing through randomness. They then created a search engine called Backrub. It was running as a search engine from Stanford just like Yahoo ran till the traffic got big and the IT guys sent it off the campus. So these 2 guys would come to the office and say “hey we need some more disc space”. They were completely non respectful of me, which was a wonderful thing. They treated me like an equal. These 21 year old guys were demanding things from me. They needed more disc space because it’s getting bigger. So we need more disc and more money. There are still pictures around the building of how they used to use Legos, to create a box inside which the discs were being put. These discs were those cheap ones bought from the back of a truck and were generating a lot of heat. So they put it in Legos to allow for air circulation.
For me it was a fun research project. We had a lot of ideas which we shared. At some point this thing started getting very serious and we wanted a better name for this than Backrub. So somebody came up with the name Google. Google means 10 raised to the power of 100. It is actually spelt as GOOGOL but somebody miss spelt it and that’s how the search engine got its name. Of course the official story is we deliberately spelt it that way but my guess is we miss spelt it.
So Google started and pretty soon everybody in the world was using Google. The results were much better than all the other search engines going around. It was by word of mouth like I tell my brother to use it, he would tell his wife, the wife would tell her kids and so on. At some point these guys said we want to start a company. Everybody said it was not worth it. There were 37 search engines already there. How would you raise money? How would you form the company? But they decided to do it and they did it. There were some big names which supported the company. Andy Bechtolsheim, an ex Stanford guy who along with Vinod Khosla had founded the Sun Microsystems, put in a little bit of money. They managed to raise a million dollars. They started the company and it was right here in the university avenue. It used to be on my drive home so I used to go and hang out with these guys. It used to be wonderful.

Then they took over the world!

Right now the other search engines don’t even compare and I remember people who I don’t want to name saying why do you need another search engine? Today it is the only search engine people use. Now it is a company of 500 people or more doing hundreds of millions of searches every day, generating revenue. One of the few companies which in today’s economic conditions is not only surviving but also growing. Feels like I was part of a little bit of history and contributed to that history.

SK: Can you explain in simple words, the concept of search engines? How has it evolved?

RM: There was this thing called Information Retrieval which was used for document management. Consider your desktop machine. So let’s say you are writing chapters of a book and chapters of others books. And there are thousands of documents. Each document is just a document of English words. This could be more related to encyclopedias and newspapers articles and Reuters news feeds and so on. So you have all these documents with you and somebody comes to you and asks you a question. Can you answer that question or at least point to the right document that answers that question?
All of this was unattainable. So it reduced down to can you at least show me the document that contains the same words that are there in the question? If I said, “what kind of yeast should I use to make bread?” Ideally you would like it to come back with the answer. But you can’t do that. You could though at least find the document that uses the word bread and yeast and hope that has something to do with the question. That was the field of information retrieval. When the web evolved it became pretty clear that there was going to be a tremendous information explosion.


SK: Initially you had to give some key words for every web page and it would search only those keywords?


RM:
Even now it is still the same. It goes through the entire document and indexes the entire document. The computer helps to solve the scale of the problem which is huge. There are billions of web pages, each having thousands of words on the average. So there are trillions of words. So what you do is create an index that is trillion big and when you come along and say yeast and bread you find all the documents on the web that contain yeast and bread. It turns out millions of pages containing yeast and bread which is of no use to you. So people come up with this rule where if the document contains the word yeast 7 times and the word bread 3 times, then that is a score of ten, so give me the highest score document. I am just simplifying the rules of information retrieval but they have even more complex ones. For eg the word bread is very common and can be found in many places but the word yeast is uncommon so you start doing weighting and the other heuristics. None of this required rocket science, none of this is very deep.

It was library science. Not computer or mathematical science. So the old search engines like Alta Vista, Inktomi and so on, to a large extent this is what they are doing today too. The problem they were solving, the key secret sauce was the scale. They were able to harness a lot of memory and solve these problems on a large scale. So instead of building indexes of thousands of words they could build indexes of trillions of words and search through it very quickly. They just put a lot of horse power behind it but not any science. There were a few small ones which were exceptions but this is generally what search engines are doing today.
What Google changed was the following
It actually started looking at the structure of the web. The basic structure we noticed was that it’s a collection of documents. These documents talk to each another. The reason is the hyperlink. Without the hyperlink, the web would have been useless. When you click on it, it takes you to another document. It is like this document saying “hey, look at that other document”. Now if I create a web page and make the effort to point to your webpage, there is some meaning and connection between my webpage and your webpage. The content here and there should be related in some form. This was the basic insight in Google. Instead of looking inside the webpage or the words inside it, look at how the web pages talk to each other, how they talk about each other how they point to each other. So that was the basic insight and everything else was built around that insight.
One of the key things they did was coming up with this ranking function. So if you went and queried on yeast and bread what I would like to do is go to the most authoritative page on the web which talks about yeast and bread. So if there is a yeast or bread makers association of America, then presumably theirs is the most authoritative page on how to make bread out of yeast.
You do use yeast in a bread right? Don’t want to get that wrong. (laughs)
So the question was how to find the most authoritative page on a certain topic? Here is a simple basic idea that underlies that notion. The notion is – Look at the structure of the web. Secondly how to we convert this structure to a ranking scale? This goes back to the random walking I was talking about earlier. Suppose you are at my web page. There are 5 links out of my web page. You are a surfer. What did you do as a surfer. When we first surfed the web, we went to a page, clicked on it and found it magical. That clicking led to another page, and so I look at that and click and go to another page. And so now you are surfing. Suppose you are surfing at random. Let us say my page has 7 links. You randomly clicked on one of those 7 links. You reached the next page which had 3 links and clicked on one of those at random and it took you somewhere and so forth. After a while you will be on a random page on the web. Suppose you surf long enough, you do it a million or billion times, you will be distributed somewhere on the web. You could be on any page. The question is what is the probability that you are sitting on a particular webpage?


SK: It’s a graph theoretic problem.

RM: Yes it is. This is called doing your random walk on the graph which excited me about all these things. Turns out the probability distribution is not unique. There is a different probability being on different pages. Quite obviously if every page in the world points out to my web page then the chances of ending up on my page are very high because wherever you are there is some probability that you will come here. Nobody points to me or if one guy points to me then it is very unlikely. On the other hand if the important pages in the world point to me, then you are likely to end up at my page. But what are important pages? Those are the pages to which other important pages point. So this logic of circularity or flow is what led to the notion of page rank. Ranking of pages is Google’s secret sauce. So they came up with those and discovered that this is the right thing to do.

In hindsight I came up with the estimation of the random web surfer that there was a purely mathematical thing of eigenvectors and matrices etc. Now on a query on yeast and bread, what we do is look at all pages that contain yeast and bread , find the page with the highest rank or score which has the word yeast and bread and we say that must be your answer and it is usually right. Google got so cocky on this, that it has ‘I’m feeling lucky’ button. So if you give a query and hit that button, it takes you to a page. That page has the right answer.

Wednesday, August 12, 2009

Book Review: Curfewed Night

Peerless
A reaction to "Curfewed Night" By Basharat Peer, (Random House India, 2009)
Shivanand Kanavi
(See: http://wearethebest.wordpress.com/2009/08/10/an-example-to-emulate-for-indian-journalists/)

Basharat Peer’s “Curfewed Night” is a welcome first-person account of Kashmir of the last two decades. Peer’s book is lyrical, intense, partisan and cynical in varied proportions at the same time.

A simple linear narrative of events since the 1980s as seen by a Kashmiri boy (the author), Curfewed Night will help in educating the vast mass of Indian people who are distant from Kashmir in every way, who are not activists of the human rights movement, and who are the chief target of the Indian State’s one-sided propaganda about what’s been happening in Kashmir in the last two decades.

The book begins at the beginning that is the author’s childhood. This part is lyrical and at times cute. It could have been the retold story of any articulate, sensitive boy from any Indian village to any urban or exotic audience. Then comes teenage and the romance of the Azadi movement; the blind fury and brutality of the security forces clearly reflecting their hate and an occupationist attitude towards the Kashmiris.

Peer tells the story of the emergence of the struggle of Kashmiri youth, armed and trained across the Line of Control (LoC) by our friendly neighbours and the impact of all this on their friends and families. The author’s own brief inner turmoil to cross or not to cross the LoC, the romance of a sexy AK-47, and the pressure from the family to follow a more traditional middle-class road and, above all, a concern for self-preservation, are all conveyed very convincingly.

Then comes the life of a self-exiled student and later of a young journalist in the 1990s, with a longing to tell the “untold story of Kashmir”; the evolution of the author with exposure to a normal life and ‘freedom from searches’; exhaustion setting in about indigenous militancy with no hope of a quick victory and so on, seems a little rushed.

Peer then gives us an invaluable, authentic picture of the emergence of jihadis from Pakistan equipped with laptops and satellite phones ready to unleash terror, where the random victims are not necessarily military targets, while a hapless population caught in the cross fire continues to grieve over the loss of a generation.

Peer excels when he brings out journalistic gems like the story of the ikhwanis, turncoat militants who became a part of Indian counter-insurgency; chameleon-like careerists who smoothly switch roles between militant, reformed militant and politician, a cryptic hint of the alienation of separatist politicians from the ordinary aggrieved Kashmiris; or the schizophrenia of a swaggering para-military officer who unexpectedly melts in a media room when Peer starts recalling the life he spent in Delhi.

Despite these excellent points, however, there are some rough edges and glaring lacunae as well.

Peer’s style is very uneven and varies between the raw and the sophisticated. It is possible that the account has been written over a long period of time during which the writer himself has evolved. However, that does not absolve the responsibility of the publisher’s editorial team to play their role, which is more than spell checking.

Peer completely omits the Kargil war and is similarly silent about the Indo-Pak peace yatra that started with the Lahore bus trip by Atal Behari Vajpayee and has gone through its yo-yo moments.

These are glaring blemishes to ignore, especially from a trained journalist.

Peer stumbles often in maintaining distance and some circumspection regarding his own emotions and concerns. For example, there is too much shock expressed when a youth who is dandily throwing grenades and sniping armymen gets killed in an encounter.

Surely, Peer did not expect such elements to be given a medal by the army?

I am sure the militant himself was mentally ready for “shahadat”, even though youth are prone to feel temporarily invincible in the early stages of any insurgency. The fact of the matter is in such armed insurgencies there are very few armed men surviving till the end game (say in PLO or IRA).

Peer also exhibits a casual disdain for the changes that are occurring in India in the last two decades and rubbishes them with the label of a discredited “India Shining”, an affliction of many a blinkered anti-establishment writer.

In fact there is every reason to believe that these changes are also occurring at least in Srinagar and Jammu if not in rural J&K, albeit in a small way, and that is affecting the attitude of a section of Kashmiri youth (mostly born post-Gawakadal) who want to move on.

The fact that despite the hysteria of the Amarnath agitation in Jammu and Srinagar, the prime movers of the agitation on both sides viz BJP and PDP did not win either Srinagar or Jammu seats in the general election says something. There are long queues for recruitment into new BPOs opening up in Jammu and Srinagar.

Then again, the recent prolonged strikes in Srinagar post-Shopian and a suicidal destruction of the livelihood of hundreds of thousands of Kashmiris engaged in the tourist trade, tells us not to get carried away too much and that the old is still very much alive.

On the whole, Basharat Peer’s Curfewed Night is a welcome addition to contemporary history, written with passion and pathos.
It is surprising that we have so few of these in India (at least in the English language). Why don’t we have more such attempts to tell the story of Manipur, Nagaland, Narmada valley, the jungles of Orissa/ Chhattisgarh/ Jharkhand, Dharavi, Emergency, Amritsar ‘84, Delhi ‘84, Mumbai ‘93 or Gujarat 2002 in print or in film?

Why don’t we have our Norma Rae, Erin Brokovich or My heart lies buried at Wounded Knee? An Amu (Delhi 1984) or a Parzania (Gujarat 2002) are not enough.

Hopefully, more writers will follow Peer’s lead.

Friday, June 26, 2009

Interview: Kamala Sankaran

Peepul ke Neeche—Conversations

British Colonialism and the Indian legal system

What were the contours of legal system in India in the pre-colonial times and how did British colonialism alter it to its detriment has great relevance today. After all the system that is in practice today is part of our colonial legacy. Shivanand Kanavi explored this important subject in this conversation with Dr. Kamala Sankaran, who teaches at the Faculty of Law, University of Delhi.

SK: Let us explore how colonialism changed the judicial system in India and what impact it had on the people. Even today we see big disconnect between people and the legal system. Empirically we can see it in the discontent that a large number of people have that they do not get justice or it is delivered too late that at times the person dies before he gets it. All kinds of explanations are given regarding this eg. paucity of judges, courts etc. But the system itself seems flawed. It is notable that one of the demands of people in Swat, Pakistan for several decades has been the establishment of Nizam a Adil system of courts rather than the British system mainly because of the inordinate delay in the latter. Why do people in the subcontinent feel alienated by the British system, what needs to be done?

KS: A good starting point is to look at what existed in India before the British came. It is difficult to simplify this since India is a complex region. Even before the Mughal rule there was in many parts of the country a shastra based system and a system based on custom or vyavahara which was based on the life experience of people, how they dealt with norms and the systems and institutions they had created. On top of that you have another system of institutions which were created with the advent of Mughal rule in India covering vast areas of India. Even this allowed plurality of systems. So what marked India before the colonial intervention is plurality of legal systems and institutions. One of the significant effects of colonialism was the imposition of uniformity. Pluralism was considered antithetical to a neat and orderly centralized system. It has its origins in the philosophy of British, based on the notion of an Austinian state where a single monarch or a power had all power and was indivisible. All powers devolved from top down. That was the structure of the modern nation state that the British were familiar with. So there was centralization of legislative authority and executive authority. So just seeing a region with multiple states was itself a shock to them having come from a unitary one. On top of it to have multiple legal systems where different castes and religions had their own institutions was quite alien to them. So one of the things they tried to bring is certainty and uniformity in the law; certainty and uniformity in judicial and legal institutions they created. That homogenization itself was a major shock to Indians. The judicial system is one part of the legal system. So let me confine myself to that.

SK: What is the difference between the two?

KS: I am using the terms in the sense that a legal system would involve all the laws, norms, standards that are laid down to determine what is right or wrong; correct or incorrect. It would also involve all that goes to enforce the legality that is the courts, police, jails etc. whereas judicial system is a part and parcel of the legal system. When the British came to India I think they realized that there was already a fairly well developed dispute resolution system of various types in different geographical regions. We know that when the British came to India around 1600 they chose not to immediately displace the local institutions if they could. Their strategy in India was different from their strategy in North America, or in parts of Africa or in Australia. Those they considered as res nullis (belongs to no one, belongs to those who find it first) countries, where there was an absence of a legal system – even though there were indigenous people in those lands. The Anglo-Saxon law in toto could be inflicted on all those people. In India they already knew was an advanced civilization with many institutions and laws in place. So they tread fairly cautiously. You can see it very clearly from 1600 to 1773 when the Regulating Act came into being. In 1726 they had the first charter which allowed courts to be set up in the three presidencies. The courts setup soon after the first factory was setup in Surat, were dispensing justice to only Englishmen and adjudicating on principles of equity, justice and good conscience which those colonial civil servants could well understand. In 1726 they decided that English law as adapted to Indian conditions could directly applied. In 1773 after the battle of Plassey, the entry of Warren Hastings in 1772 and the Regulation Act of 1773 they very clearly stated that with regard to personal matters pertaining to Hindus and Mohammedans, the English law would not apply but that it would for other aspects like property, commerce etc. They did setup the courts in civil jurisdiction. That is quite significant. The battle of Plassey won the British the diwani and not the nizamat. (Diwani is the civil administration and nizamat dealt with the criminal jurisdiction as well as the army in each subah. This was part of Mughal administration. To the best of my understanding it meant ‘he who had the purse would not have the army and vice versa’, which prevented any threat arising to the central order from the subahs.) The British won the diwani, they had the right to collect revenue but they did not have the right to dispense criminal justice. For a long time the nizamat continued to be at Murshidabad while the diwani was in Calcutta. The merger of the two took place later. There are legal historians who have shown how the nizamat steadily crumbled in power. Diwani adalat mainly dealt with disputes arising out of revenue. Very soon Warren Hastings was followed by Cornwallis with his permanent settlement and collection of revenue was of utmost importance to the colonial administration. In the diwani adalats that the British introduced the provision that if you were not able to pay the land revenue then you could sell a part of your land to pay it. Over a period of time nizamat adalats or fouzdari adalats came under British purview.
You asked what impact the British judicial system had. They set up these specialized courts manned by people trained in law with independent judges. That itself was a cultural shock for people of India because till that time if you look at the existing dispute resolution systems, typically at the village level, one had the panchayat system. Panchas would be notables who would be known locally. They were not ‘elected’ as we understand today. By the modern yardstick they would not be ‘independent’ as they would be members of the community. The idea of an independent judge is comes from Anglo-Saxon jurisprudence and it requires that the judge’s mind is a tabula rasa, a clean slate, with respect to the dispute and he only allows his mind to register that which is relevant to the dispute. The medium by which the judge appreciates the facts or the evidence is through the two lawyers representing either side. What they bring into the court largely determines the final outcome. So the relevancy of who should be allowed to address the court and complex rules of evidence concerning who could step into witness box and address the court, on what matters can be addressed became very important. So important unless one’s own eye or ears have seen/heard the transaction one could not testify and one could testify only with regard to that particular transaction. Whereas in the panchayat which was held in the open anybody who had even fringe knowledge could speak. They did not have to go through this filter of ‘is this relevant, are you worthy’. Therefore you had a sense of participation and anybody could speak. With this system one had a judge who was not known to the parties, which was seen as virtue in the English system but was alien to Indians. Language of course it goes without saying was English and one had to hire a lawyer and I am not going into that.

SK: This also creates the scope for the judge to let a case drop on technical grounds that the lawyer did not present the right thing or in the right way, even if the judge can see the right and wrong himself.

KS: That is true. There is very limited power of the judge to take judicial notice of certain things but his knowledge was as good or as bad as that of the lawyer who presents before him or her. There was also no ‘her’, so I might as well confine it to ‘him’! Thus, in all these areas: the choice of the judge; who could testify, regarding what they could testify; the location of the court. I am not romanticizing it but it was more participatory. There had very strict rules of relevancy. (Many of these continue till today). If a person had behaved in a similar manner in a previous transaction it could be ruled as an irrelevant fact unless you could construct an organic connection. Secondly they had these rules against hearsay. That meant that only a person who had directly seen or witnessed a particular event could have the right to speak. If you had heard it from your wife that she saw something and she was unable to come then your testimony would be hit by the rule against hearsay. Thus only a small group of people would have the capacity to address the court and other who may have accompanied the party to the court because they had knowledge about related matters would have been considered irrelevant, and that would create the perception that you were not being heard. People were priced out, they could not understand the language. Therefore these courts with their very specialized rules of evidence manned by very technical judges, and where you would have to place your full faith in the vakeel who alone would be the voice that would speak in the court, made the system inaccessible to Indians.
Look at the court buildings of the British. They built the supreme court of Calcutta, a grand structure many steps from the ground, where the judge (s) would sit high upon a bench, whereas earlier the panchas would sit on the ground etc. The whole geography and architecture of the court system alienated people. The form of decision making was also entirely different: the judgment was in the form of a ‘yes’ or ‘no’. Whereas the panchayats always negotiated, with no clear winner or loser, you are willing to find a mid-ground so that all could save face. People were used to that system where you would not lose everything but some form of justice would be done. So that you did not have a win-lose but a win-win.

SK: You were heard.

KS: Yes you were heard and the solution framed gave a lot of discretion to the decision makers to decide what would best serve the ends of justice. So long as their decision was not out of sync with vyavahara that was practiced they had a whole range of flexibility. In today’s parlance of alternative dispute resolution systems, panchayats had many desirable features. In contrast, for the British, the certainty of law that it was fixed before the dispute came into being was seen as a major virtue. So it needed a black and white text, written and published, which gave it stability and majesty.

In India if you take the law applicable to the Hindus one had shastras, the shruti and the smriti, which constituted the shastric sources of law. They were constantly subjected to interpretation by commentators, glossators etc. Then you also had vyavahara which varied from the shastras and varied in time and regionally. The vyavahara could override shastras also. In different parts of the country the usages developed and these were taken to be the law. For example regarding women’s rights to property. Even if some of the shastras did not permit it, in large parts of India women did own property so that was vyavahara, as for example in the south, east. So British found different practices in different parts of India and that went against their homogenous conception of law. So in 1773 Warren Hastings organized for the documentation in black and white of what the law is.

SK: Was this the Gentoo code?

KS: Yes that was Halhed’s ‘A Code of Gentoo Law’ that he translated and complied in 1776. Sir William Jones also translated some important Islamic texts. Earlier, the panchas had the freedom to fashion their remedies, had freedom to look at the exigencies of the situation, etc but once you were confronted with a law in black and white: for every contingency, the consequence was determined; there was far less flexibility. Interpretation was not given importance. All this contributed to the alienation.

When the British came they took the policy of “not interfering” with Hindu and Mohammedan law but it was only a lip service. In order to understand what was Hindu and Muslim law, the British decided to translate and codify it, it became fixed, and further, these were privileged over the vyavahara. They also started codification of other branches of law. While they had a so called ‘hands off’ approach to personal law, as for law regarding property, contracts they did not see readymade codes in place. They decided that those are the areas where they would themselves codify the law.

We should not forget that the period when Warren Hastings and Cornwallis were in India was also the period of the emergence of utilitarianism in England. James Mill, Jeremy Bentham etc were also great codifiers in their own right. It accelerated the codification of Indian law. The utilitarians believed that the body of common law developing in England was inadequate to deal with poverty thrown up by industrialization in England itself. They were great promoters of Poor Laws providing some benefits to working class in whatever way. The big laboratory for codification was India. The first Law Commission was setup in India in 1834 and the second Law Commission in 1853 and the main job of these commissions was prepare the codes. The amorphous body of English Common Law by which I mean the body of case law with various principles which was never codified in England itself was done for the first time in India.
You would be surprised to know that Indian codification went back to England in certain cases to assist in their codification nearly a century later. Thus, India was a major laboratory for codification for the British. They then used it to export it to all other colonies including the home country itself. For example the Trust Act was first codified in India and then went back to England. They codified the law relating to contracts, sale of goods, transfer of property, trusts and of course criminal law. In the Mughal courts they had their own criminal law and all that changed after 1858.

At the same time whenever issues came about taxes owed to the state arising out of Permanent Settlement, huge amount of litigation came up in Bengal, Bihar and Awadh in the Calcutta court. This required that property be put on the market for sale to recover the revenue. This in turn required the tweaking of traditional Hindu and Muslim Laws. Property was personal and private and its alienation was very difficult in pre-British times. The capacity of the karta of the Hindu undivided family to alienate was greatly assisted by the British courts. The body of Hindu law l law, really became a modified one, now referred to as the Anglo-Hindu law and Anglo-Muslim law because these were not the pure Hindu law and Muslim law that existed before the British times. The right to alienate served the British colonial interests. The doctrine of lapse also went against the older theory of kingship that existed in India but it was upheld by the Privy Council. The rights of zamindar, the duties of the zamindar - all these changed.

In areas which were not strictly personal law as understood by the British they felt free to legislate. After 1858 over the next 30 years they carried out a lot of legislation. For example, in 1860 they legislated the Indian Penal Code, the Societies Registration Act and little later in 1867 the Press and Registration of Books Act. British knew from their experience of the trade unions in their country that when the trade union movement shifted from an early Luddite position to a more advanced one, the organization of workers to fight for their rights became very important. Organisation was power, so the law declared that a group of people cannot form an organisation unless they are registered with the state. The British had done that in UK some dacades earlier.
SK: Plus they had seen organization among Indians in 1857.

KS: Yes, plus the power of propaganda, and so they found the need to enact the Press and Registration of Books Act. The three laws they brought in immediately after 1857 were these - to criminalise any kind of action against the state. The Criminal Procedure and Civil Procedure codes (1872) were then brought in. It is said that procedures are handmaids for justice, which is no doubt true. Instead of the ad hocism of court procedure in pre-British times, this was systematized. Once you have a centralized administration you cannot have panchayats in different areas doing things in their own way. The rules were created by a centralized power.

SK: What are procedures?

KS: In the civil side, for example, broadly that you must hear both the parties - that the other side must have a chance to file its written statement following the filing of the plaint; that the parties must exchange documents - so documents become very important, supplying the list of witnesses etc. The procedure becomes long drawn and each time the judge must decide what is relevant/irrelevant. The judge has to frame issues on which alone he will focus his mind and give a decision. In the criminal side there must be a FIR, there must be an offence under which you are charged, then you must be tried, who could be called as witness etc.

Broadly the laws of the 1860s were very much geared towards consolidating the colonial state; in the 1870s and 1880s it was consolidating the empire and hence the laws relating to contracts, sale of goods, trusts, telegraphs etc, which assisted the building of the economic empire. The other law that helped in the consolidation of the empire was the Land Acquisition Act (1894), which gave the power of eminent domain to the state to acquire land.

SK: Did the power of eminent domain not exist in the state in pre-British times?

KS: I do not think it existed in this far reaching form. The power of the state to levy a maximum of one third share of the produce existed but that you could completely dispossess somebody’s property to hand over to a third person does not seems to have been broadly practiced. Of course in times of war, etc requisitioning would have happened. But the British took it to new heights of acquiring land for all the major projects that the empire required like railways, industry etc. The irony is that they would acquire land in the name of the public interest and then hand it over to a private party also. The Telegraph Act was passed, the postal system was setup, a monopoly was created in communications. All this helped the empire.

Then came the legislation relating to the setting up of companies and regulating conditions in factories. I also want to mention the Workman’s Breach of Contract Act (1859). It enabled them to provide labour to serve the purposes of the British Empire the world over through indentured labour. They needed labour in the West Indies, Malaya, Sri Lanka, Africa etc. Agents would go to the villages and recruit. May be they did not capture and kidnap as was done for the slave trade in Africa but short of that everything else was done. Recruited workers were sent away on this major voyage. As Marx said the modern worker was ‘free’ in a double sense. He is ‘free’ from all property and he is ‘free’ to enter or not to enter into a wage contract. But in India the worker was not free to choose his employer. He would be criminally charged with breach of contract if he tried to abandon his employment and employer.

Thus the changes in the law between 1850’s to 1890’s consolidated the British colonial state in India. It disempowered the people. There were also laws that consolidated the economic might of the empire. This set the stage for rapid industrialization of India.

SK: What about the Arms Act (1878)?

KS: The main effect of that was to disarm the people by prohibiting the carrying of arms without a ‘licence’. In the American constitution the right to bear and carry arms has been seen as a residual right that people retain which has still not been taken away. But the British colonial theory never recognized this right. The British constitutional theory was based on the Austinian notion of a centralized authority which has all sovereign power and a subject has only those powers that are given back to him/her. The notion of an inherent liberty by virtue of being a human which were recognised by the French and American constitutions were not accepted in India. You only had the rights given to you by the crown. The colonial state formation had been a disempowering process.

SK: What about militias and Yeomen rising up to assist the state when there is a serious external threat?

KS: That may have existed in feudal times but as the modern nation state emerged, the sole monopoly and prerogative to inflict violence exists with the state. The right of the people to resort to violence would be a lawless act as you would “taking the law into your own hands”. In a very limited way the right of private defence was recognized. When somebody attacked you, you could use equal force to repel that person. But that could be done in a purely reactive way, not independently.

SK: You mentioned that they purportedly stayed away from the Hindu and Muslim Law but what was their attitude towards the huge mass of adivasis who belonged to neither? How did they interact with them their rights, customs, forms of state etc?

KS: As British territory increased (many princely states had far more progressive legislations than British India) as they came in contact with tribal communities. They just dealt with them using their full military might and colonial laws. For example they took over forests as crown property and created reserved forests, protected forests etc. Forest dwellers then became intruders who did not have any legal rights because they did not have systems of private property ownership which other communities may have had. It was a complete takeover of the natural resources.

SK: It was akin to what they did with Native Indians and Aborigines elsewhere.

KS: Yes.

SK: Clearly British intervention changed things fundamentally especially regarding conception of property rights but what happened during the earlier interventions by the Turks, Pathans, Mughals etc. How did they deal with the existing system?

KS: I am unable to answer this question fully but the existence of pluralism in many parts of India, even after the advent of these rulers indicates that much of the earlier legal regimes continued with some changes. It was certainly not the kind of seismic shift seen under the British.

SK: Could you speak about the colonial roots of Indian labour law?

KS: Who has the right to be a worker and employed is determined by the employers and that is something that labour law recognises. That is why it is not worker friendly. For example when capitalism and colonialism wanted expansion of employment they would drag persons away and compel them to work. One had the slavery system as practiced in Africa where literally a net was thrown over captured slaves and they were dragged off. In India they were not so crude (slavery had been abolished in England) but in every state there would be agents, jamadars, sardars who would go village to village recruiting workers. They were completely regulated by the British state because they wanted labour for plantations in India and for the whole empire. At that time you had to work and breaking out of your employment was considered a criminal act. However when the recession struck as in the 1890’s or in 1920’s labour law shifted away from trying to get more workers and recognized the inherent right of the employer to lay off or dismiss. Suddenly the contract of employment becomes a contract freely entered into with a free exit. So the job security that workers wanted has never been recognized. To the extent that workers are organized and have won some rights, there is some amount of redundancy and retrenchment compensation. So the inevitable is only postponed for a period in order that the worker can go out and look for another job. Labour law has this aspect that it accommodates the cycles of capitalism. Today we are told that labour law is inflexible and we need an exit policy and that is the problem with Indian industry. That is not always so. Problems with Indian industry have very little to do with the labour law.

SK: The impact of colonialism on Indian society is a fascinating subject as much of it lingers on to this day as a colonial legacy. We will continue this later too. Thank you.

Notes:
John Austin: John Austin (1790-1859) is considered by many to be the creator of the school of analytical jurisprudence, as well as, more specifically, the approach to law known as “legal positivism.” His work “Province of Jurisprudence Determined” (1832) had a far reaching impact. He greatly influenced his associates, Jeremy Bentham, James Mill, John Stuart Mill and Thomas Carlyle. According to 20th century theorists like H L A Hart, “Austin's influence on the development of England of [Jurisprudence] has been greater than that of any other writer”.
Sadr Dīwānī Adālat:
In Mughal and British India, a high court of civil and revenue jurisdiction. It was instituted by Warren Hastings, the British governor-general, in 1772. It sat in Calcutta (now Kolkata) and was the final court of appeal in civil matters; it consisted of the governor-general and two members of his council.
This high civil court, like its counterpart for criminal jurisdiction—the Sadr Nizāmat Adālat—was abolished after the Indian Mutiny of 1857–58, and its powers and jurisdiction were transferred to new high courts of judicature set up by the Indian High Courts Act of 1861.
(From http://www.ghadar.in/, Excerpts of this interview appeared in the quarterly magazine Ghadar Jari Hai--The Revolt Continues, Vol III, No. 1&2, Jan-June 2009)

Sunday, June 7, 2009

Obit: Rajeev Motwani

I have just learned of the tragic death of Rajeev, at his home in Palo Alto on June 5, 2009.
It is shocking to say the least.
In my interactions with him I found him brilliant, child like, with a great sense of humour and genuine regard for people who helped him and inspired him in his life.
He was very good at explaining complex things in a simple manner.
From a theoretical computer scientist he had started calling him self a "start-up junkie", because of his enthusiasm in mentoring new entrepreneurs.
He was a classmate of Sharukh Khan, the Indian film star, in school and had great respect for him.
In his self effacing style he would say, 'that guy (Sharukh) is brilliant and will be the No.1 in anything he takes up'. Pushing into background his own remarkable intellectual achievements.
My heartfelt condolences to his family.
shivanand

See the brief profile I had written about him in 2004 at:
http://reflections-shivanand.blogspot.com/2007/08/rajiv-motwani.html

Wednesday, June 3, 2009

Obama, Indo-US Nuclear deal

A piece by Chidanand Rajghatta, Foreign Editor, Times of India, based in Washington, which has quoted me.

http://timesofindia.indiatimes.com/World/US/US-casts-shadow-on-nuke-deal-with-hardline-appointments/articleshow/4609970.cms

Obama picks are cool to US-India nuclear deal
3 Jun 2009, 0030 hrs IST,
Chidanand Rajghatta, TNN
WASHINGTON: The Obama administration on Monday named hardline non-proliferation warrior Robert Einhorn as the US State Department's special advisor for non-proliferation and arms control amid disquiet in business circles on whether the choice, along with other picks for key posts, will push the US-India civilian nuclear deal into cold storage.
Secretary of State Hillary Clinton announced her choice of Einhorn, a former Assistant Secretary of State for non-proliferation during the Administration of her husband Bill Clinton, as her advisor, saying he and his staff will "provide advice...on non-proliferation and arms controls issues, and will help develop and implement Administration policies and diplomatic strategies in those areas."
Einhorn, known as an unrelenting non-proliferation and arms control hawk, worked in the State Department for 29 years before retirement, and was a trenchant critic of the US-India nuclear deal. Jocularly called the "grand ayatollah" of non-proliferation, he argued that the Bush administration gave away the house to India in order to build a strategic relationship with India at the risk of undermining non-proliferation regimes.
"In seeking to make India an exception to longstanding non-proliferation rules, the Bush administration has given India virtually all that it wanted and has run major risks with the future of the non-proliferation regime," he told the senate foreign relations committee in one of the several hearings on the subject.
The choice of Einhorn as Clinton's advisor, coming after the naming of former Congresswoman Ellen Tauscher as the administration's Undersecretary of State for Arms Control and International Security and Timothy Roemer as US envoy to New Delhi, has cast a shadow on burgeoning US-India ties, specifically the US-India nuclear deal.
All three are considered hard-line non-proliferationists in the old Democratic mold, and business groups both in US and India are uneasy that they would put a spanner in the works of nuclear energy collaboration that some estimates put at over $150 billion over the next three decades.
An American commercial nuclear mission with 60 executives from 30 companies visited India earlier this year amid apprehension that US firms are behind the curve in capitalizing on the nuclear deal because of bureaucratic hitches in Washington and New Delhi, even as other countries are racing ahead. France and Kazakhstan are among countries that have sped forward with civilian nuclear collaboration with India.
Those hurdles might get even harder if past record is anything to go by. Former Indian officials hold Einhorn principally responsible for putting India in the nuclear doghouse for decades along with many proliferating nations despite its spotless record of on-proliferation. Ironically, they say, some of the most egregious acts of proliferation, including Chinese supply of nuclear technology and material to Pakistan, and A.Q.Khan network's proliferation to North Korea, Iran, Libya, and al-Qaida, among others, took place on Einhorn's watch.
However, a current official described Einhorn as a "pragmatist" with whom they have developed a working relationship. Speaking on background, the official suggested it was a "different era" in US-India ties and there were foreign policy interests that had to be taken into consideration by non-proliferationists. Another former official, T.P.Sreenivasan, a visiting fellow at Brookings Institutions, also said Einhorn was someone New Delhi "regularly exchanged ideas with" and saw no difficulty in engaging him. "He understands us," Sreenivasan said.
Some analysts suggest that formation of the Tauscher-Einhorn team is directed more against North Korea, Pakistan and other proliferators, and India has been moved out of the rogue's gallery. Both Barack Obama and Hillary Clinton voted for the nuclear deal when they were Senators (despite some reservations) and they are unlikely to undermine it, especially as it involves US commercial interests at a time of grave economic crisis.
"There is nothing to be alarmed about. We have got most of what we wanted in terms of global sanctions on nuclear trade having been lifted. Agreements already signed with Kazakhstan, France and Russia for Uranium and reactors. Now the ball is in US court," says Shivanand Kanavi, a business writer from Mumbai who has followed the nuclear deal closely and is writing a book on the Indian nuclear industry.
The Tauscher-Einhorn team is also expected to advance Washington’s multilateral non-proliferation agenda - including the ban in nuclear testing and the capping of fissile material - which have been revived by the Obama administration after the Bush White House had put it in cold storage for eight years. Kanavi does not expect too much pressure on India on this front either, saying "there is a long way to go before consensus is achieved on pacts such as NPT, CTBT, and FMCT, and they are replaced or re-architected."

Monday, April 13, 2009

Poetry: From the bottom of my sole

The recent spate of shoe throwing at various leaders to register protest, reminded me of an old poem written by my father Chennaveera Kanavi, in Kannada, circa Emergency 1975.

“LISTEN TO ME, I AM TELLING YOU”

By CHENNAVEERA KANAVI

For God’s sake, why do you spread false news?
Honestly, nobody threw chappals at me in the recent meeting.
I am speaking absolute truth!
Even if they did, I never saw it.
This is the really real truth.
No. they didn’t hit me at all.
Please don’t believe what they say.
simply because it appears in the papers.
Read the stuff and then consign it to flames.
Are these paper-fellows, are they lily-white?
They announce the happening of what could have happened!
Never mind if it happened or not, it is news all the same.
Yes, it is true that I saw someone wave a black flag,
because black stands out amidst white caps!
But what’s wrong with it?
wasn’t there a huge audience that day?
After all, my speech is not dirt-cheap, is it?
In such a commotion,
don’t you think it is but natural
if someone were to transfer what is on feet to the hand,
and then transfer it from hand to the head?
If I am right, why all this hullabaloo
about the chappals being aimed at me ?

All right, granting that they threw chappals:
why not assume that they were playing a game
of throwing and catching chappals ? Tell me.
You may insist
I was the target.
may I then ask you a question?
Did they get the chappals specially made for them?
They were bought in some shop,
and worn out after so many days’ walking,
now apparently torn, and flung with force. All right.
please, what is the point of taking out anger here
whereas its cause lay elsewhere?
If they opened fire in Gujarat, why should they hiss angrily here?
The price-rise, the decline of self-respect and dignity
and double-talk
they belong everywhere and still occur.
Are they our exclusive property ?
Look at Bihar, how they, sealing their lips with cloth bands,
joining hands behind their back, took processions.
Well, even the papers reported all this.

Following them, we should shut our mouths and keep mum,
and there lies smartness.
Just one more word, please listen: the chappal-throwing is over
wouldn’t it be fair if they were presented with new chappals ?
What do you say?

(From Inviting LifeChennaveera Kanavi’s Poetry, Translated by Prof. K. Raghavendra Rao, Sahitya Akademi)

Sunday, February 15, 2009

Interview: Dr D P Agrawal; History of Indian Science and Technology

Peepul ke Neeche
History of Indian Science and Technology
Conversation with D P Agrawal
Dharma Pal Agrawal is a distinguished scientist. During his tenure at Tata Institute of Fundamental Research(TIFR), Mumbai, and Physical Research Laboratory(PRL), Ahmedabad he made outstanding contributions to using scientific techniques like radio carbon dating and thermo luminiscence to fixing the age of archeological artifacts. In fact he brought in a flavour of hard science to Indian archeology. He has also been deeply committed to reconstructing the history of Indian science and technology, which has been ignored by eurocentric historians. Shivanand Kanavi met him at Almora, where Agrawal currently leads Lok Vigyan Kendra to carry out research into the past as well as train a future generation of enquirers.




Shivanand: Dr Agrawal welcome to Peepul ke Neeche. To start with I would like to ask you about one of your current preoccupations with the History of Indian Science and Technology. How did this love or almost an obsession start?
D P Agrawal:
In fact, my fascination with primitive technologies goes back about thirty years. I was working on ancient metal technologies of the Harappans, the Chalcolithic cultures and even before that I was working on Stone Age flaking of tools. For example, taking out long stone blades starts from the Upper Paleolithic times (older than 100,000 years). This continued up to the Harappan times. He produced up to six inch long blades, sharp as a razor. You can even shave with them! For a lot of tasks these stone tools were used as arrows, knives, spears, even harrows for digging the earth. So it seems to me that the story starts there.
The Harappans were using quite a bit of copper. In fact, if you compare them with other copper-bronze age cultures in India, they had the most abundant copper. Pure copper is soft. So you cannot use it as a knife. You can hammer it and anneal it, but after a few hammerings it becomes brittle. So they must have combined some minerals bearing arsenic and tin with those bearing copper and the result was bronze. Now we know if we mix 1-5% arsenic with copper it imparts hardness, also some ductility. Later on they also found that if you add a little bit of lead then you would improve its fusibility. So I started looking at these things when I was at TIFR. We found that the Harappans were using tin alloys, arsenic alloys, adding lead to improve fusibility for casting.
Later on I got interested in how climate changed over the last few million years and we carried out a big project in Kashmir which was a huge lake. So the sediments are there like pages of the book. You can keep turning and you can go back 4 million years. It took us ten years. We wanted to continue but we started getting threats from terrorists, so we had to quit.

Why did they see you as a threat?
It was peculiar. Since we were working with the Department of Atomic Energy for logistical reasons, they said ‘you are making atom bombs to kill us, so we will kill you’. But the people there were extremely friendly and even today if we go there we must meet those families. If they know that you had come but did not meet them, they will be very angry.
I always wanted to document and publish the history of science and technology in India and we were conscious of monumental series on Chinese Science and Civilisation by Joseph Needham. That earned a place in the sun for China’s science otherwise the west never recognized the oriental sciences. But as far as India was concerned the British always denigrated Indian science, technology, its heritage. They claimed that they came here to civilize us. But we had the Indus civilization in the third millennium BC when they were barbarians! I thought that we should publish a series of books bringing out the material evidence about science and technology in India, because if we use literary sources there can be interpretations of all kinds.

Dating the Indian records is a problem.
Yes. Even the measurement of angula is a problem. There are many versions of it. Luckily we have some actual scales in the Harappan sites and we can measure the divisions. In the first stage we wanted to base ourselves on the material evidence, archeological evidence, actual artifacts etc. That is how we started on copper technology, on Harappan architecture, on zinc or iron and so on. Now we have 16 volumes commissioned. Some more will be commissioned.

How did your association with Rajiv Malhotra and Infinity Foundation start?
It was a chance meeting. I used to go to a round table meeting at Harvard University. In the guest house I was staying Rajiv was also there but I did not know him and I thought he was another professor. The round table was mostly about linguistics, archeology, genetics etc of South Asia and West Asia. When I suggested to Rajiv Malhotra that we should have a series like Joseph Needham’s, he liked the idea. Then only he told me that they have a foundation and that they are funding some projects etc. He asked me to produce a 10 page proposal on which we would work. After that the whole thing started.

What are the problems in researching in this area and where have we made positive achievements in recording it?
I would like to see a balanced global history of science and technology so that we can recognize the contributions of different countries, be it China, France, India or England. Dharampal, the Gandhian, showed that up to the 18th century we had a lot of technologies. We could do plastic surgery; make ice, produce high quality steel, textiles and so on. Of course, we could not only produce Taj Mahal but also complex irrigation systems of Shringverpur (near Allahabad).
Then we also found Zawar mines in Rajasthan with huge retorts and commercial scale pure zinc production. Gradually we also noticed that in the Indus valley, they developed hydraulics, engineering and metrology but nobody talked about these things. So we said it is time somebody looked into these things and produced individual histories of these technologies like zinc, copper, iron, architecture, civil engineering etc. Then we realised that not only copper but right up to the 18th century we were producing steel of very high quality. British used to import it and used it in some very important bridges which Vibha Tripathi has mentioned in her book on iron technology. They were making high quality razors using Indian steel in Sheffield. Local people of Kumaun told me that in Lohaghat they used to make stainless steel kadhais. In Karnatak and Andhra regions they were producing special types of steel. It became so famous that it was traded globally and one of the mandis was Damascus. It was of such high quality that when Alexander came here in 4th century BCE, he was presented with 100 talents of steel (talent= 34.3 Kg). It was considered so precious. Then there are records that Persian kings Darius, Xerxes etc up to 6th century BCE used to import Indian iron for making swords etc. So it had already achieved so much fame.
The other curious thing is that though in the folk legends or in our historical writing we do not find any reference to the Indus civilization, but if you go by the technological traditions then you can trace everything from the Harappan substratum. The angula (unit of measurement) for example or the hexadecimal system (1 rupee is 16 annas), ser and chhatak (measure of grain), 16 mutthis to a nali (measure of land) all this goes back to the Harappan times. Now Dr Balasubramaniam has shown that it continues right up to the historical times. The iron pillar of Delhi he has shown that the same system of measurements was used.
Even our water ablutions for example can be traced back to Harappan times. Sindoor and even the toiletry assemblage of a tooth pick, an ear cleaner and a tweezer, can be found in the Harappan sites. In Kaliabangan, Rajasthan for example they used parallel furrows in the fields. On one side they grew peas and gram on the other side mustard. Mustard is the bigger plant and it should not throw its shadow over the peas. So they grew it in such a manner that peas throw the shadow over mustard and not the other way around. This way you can grow two crops. That continues till today. If you see even present day houses in that area in the mud flooring they had put burnt terracotta balls and charcoal. When we asked the engineers there they said it does not allow termites to enter the house and it does not allow moisture. This again is a technology that goes back to Harappan times. The Harappan houses had a square shape with rooms all around with an open shaft, the air conditioning people told us that this ensures air circulation that keeps the house cool. We knew how to fight the hot weather. The main entrance to the house is in the narrow lane and the wider side of the street is closed. If you go to the lanes of Benares, even in June they are cool. The lanes are too narrow so the sun cannot beat down and there is always some wind blowing. In Rajasthan again they never use a plain wall; they break it with some stone work. If there is a flat surface you absorb a lot of heat so you break it. These are devices which Indians used to deal with the weather. All this comes right from the Harappan times.

Harappan mystery, how this great culture flourished? We have material remains of their culture but what were their thoughts, what was their state? At the same time we have this heritage of Vedic literature. Some have found similarities between the two and some have argued against it. What is your view on that?
I would not claim expertise in ancient Sanskrit, but from whatever translations we have been reading about the Vedic society, it seems to have been a pastoral type. It is mainly rural and not an urban society at all which comes out loud and clear. It is dominated by priests, who had large pieces of land to sustain a large number of cattle etc. They also had a very important place for the horse, which is totally missing in the Harappan culture. If you go into their religion, the Vedic gods are all natural gods, like agni, vayu, marut etc which seems very animistic. Whereas the Harappan religion is iconic; one can see proto-Siva, Pashupati as the preserver of animals, Yogeshwar Siva is shown in a yogic pose. Then one has Mahishasur Mardini, worship of banyan tree, peepul tree etc. The basic substratum of Indian society, be it religious, cultural, technological, architectural etc can be traced back to the Harappan civilization. So it seems the Aryan phase is a bit intrusive in our history. It comes and then becomes the dominant culture, the priests, Brahmanas etc. Later on it becomes fashionable to trace your ancestry to Aryans . I will give an example from Kumaon. Here all the powerful gods are local. You can see Golu Devata, Nanda, even Badrinath, these are not Aryan Brahmanical gods. When Shankaracharya came here they incorporated them into the Brahmanical system. The local goddess Nanda became the consort of Shiva (Parvati). Tribal, primitive gods were incorporated into the Hindu pantheon of Brahma-Vishnu-Mahesh or their consorts. The same thing happens in the case of the Harappan gods. Later on they have been incorporated in some form into Brahmanism. In the tablets and seals you can see them. Even actual replica of Shivaling has been found in Kaliabangan. Most of the beliefs that we have in fertility goddesses etc go back to the Harappans. In between an interlude comes which breaks the tradition of urban civilization. We forgot the making of wells, cities etc. Around 18th-19th century BCE this starts happening. Something happens which breaks the tradition and a new one starts and sooner or later it merges with the old.

You have proposed that just as we had northwestern influences, we had north eastern ones also.
Yes. We have not gone into it deeper. Dr Vasudha Pant is working on history of plant domestication. Recent excavations carried out by Allahabad University and the Dept of Archeology, UP, at various sites yielded iron from 1500 BCE. Either we had independent development of rice or it had something to do with the Chinese.

What do you see as important challenges before Indian archeologists and historians, where further work is required, where gaps are?
If you take the archeological scene there is the peak of Harappan civilization and then something happens around 1900 BC and no more cities. People forget many things; whether there was a major climatic change or new people came is not certain. But you cannot decimate people, they move; the culture transforms. The transformation of Harappan culture into later cultures needs to be investigated. We have to excavate more sites in the western part of the Ganga valley, Haryana etc. Now Prof Osada of Kyoto and Prof Shinde of Deccan College are doing some work in Haryana and are finding sites which show transition of cultures. Eastern Punjab, Haryana, Western UP, would be very interesting.

What about Central, Eastern and Southern India?
Deccan College, Jeewan Kharakwal of Udaipur, Osada of Kyoto these are some of the groups working there.

1900 BC to 600 BCE is one gap which needs to be filled.
That is right. The second urbanization comes around 6th century BCE, the first goes back to third millennium BC and the degeneration starts around 18th-19th C BCE. So what happened in between? The other important area is peninsular India. We have very good sites of Stone Age there. We have very good examples of Neolithic culture there.

What period does Neolithic signify?
When we talk about the Stone Age it could be as far back as I million years ago. We have extensive Stone Age artifacts there. But the Neolithic will be more like third millennium BCE when they were using ground stone axes, beginning of agriculture and domestication of animals. Then we find megalithic cultures which probably starts around 1000 BCE.

What are the characteristics of megalithic cultures?
Mega means big, lithos means stone. Huge stones they have used for burials. They also put a lot of iron artifacts in the burials. Dating is a little controversial. Earlier it was thought that it could be 3rd C BCE. But some of the thermo luminescence dates are going back to 1200 BCE. But iron there is about 700-800 BC. There is a lot of iron in each grave.

Which are the important sites of megaliths in the peninsular India?
Brahmagiri, Tadakanhalli and in fact all over the south with different types of megaliths in different regions. In Kerala they have dolmens. But a society which produced so much iron, must be an urbanized society. Must have produced a lot of agricultural surplus, but where are those sites? Megaliths are so spectacular and give such rich yield in terms of artifacts that you go after them and do not go into the habitation sites. What sort of people generated these megaliths? What sort of society was there has to be investigated. Also what is the history of agriculture itself in the South? At the moment you have three broad divisions; North-wheat and barley, East-rice, South-millets. But what was the relationship of south with Africa with which it had sea borne trade, contacts.
In the south there are lots of challenging problems which we need to investigate especially the changes in the settlement patterns, even history of technology.

And their maritime contacts....
Yes their maritime contacts which go back to pre-historic times. From Roman times we have quite a bit of evidence. My feeling is that this period studies are not getting the amount of attention they deserve so there are still those blanks.

And also northeast and eastern part of the country ...
In Assam some work was done by T C Sharma and A K Sharma. Problem there is the high rainfall and most of the sites are covered by forests and vegetation and difficult to dig. Conditions have always been disturbed there. That makes it dangerous for people from outside to work there.

Your training was in Chemistry. How and when did you turn to archeology?
I went into radiocarbon dating which was nuclear chemistry. When Willard Libby invented radiocarbon dating (he was awarded Nobel Prize for it) in the mid fifties. Nehru was very conscious of it and with his close relationship with Bhabha he said there is so much confusion about Indian chronology why not use this new method. So Bhabha took up the challenge and under the leadership of Prof D Lal a group was established. Lal went abroad and worked with Libby and we at TIFR were one of the earliest labs in the world. We went around different sites, collected samples, learnt about contamination. It was a very educative experience. We also developed the thermo-luminescence dating technique, in which my colleague Ashok Singhvi played a major role.

A couple of questions before we end this conversation today. All of us have been taught in school that there was an Aryan invasion, what is the archeological evidence for that? Second, what were the causes of decline of Harappan civilization?
The first is very controversial. What we know about Aryans is through literature and that also through the oral tradition. Equating that with archeological evidence is very difficult. Evidence after 1800 BC is clear that there is a cultural break. There are no more cities. Only village settlements. There is a degeneration, which could mean some new people came, perhaps Aryans. But there is no clear evidence in the Harappan towns that there was a major invasion . So if they came they came, in waves and somehow subjugated the natives. In the case of culture also there is birth, growth decay and death. This applies to Harappan culture also. We cannot say that Harappans were decimated. So some transformation took place. May be there was climatic change also and they moved to eastwards where there was more rainfall. But they could not adapt to monsoon ecology and hence decayed. It could be a combination.

You were also associated with Prof Yash Pal in writing the first paper on the lost river Saraswati, based on Landsat imagery. Can we say now that the Ghaggar system was the Saraswati mentioned in the Vedas?
We found that the Ghaggar dies somewhere near the coast. It is no longer a perennial river. Moreover in this area there were some tectonic disturbances which changed the direction and flow of the rivers. For example the Satluj which was a major tributary of the Ghaggar system was pirated by the Indus. Similarly paleoYamuna went into Ganga valley. So the Ghaggar died. .

The identification with Saraswati, how satisfactory is that?
That is more literary but the area they describe and the traditions associated with the Ghaggar seem to identify it with the Vedic Saraswati. However some want to identify the Harappans with the Saraswati only. They started calling it the Saraswati civilization. That is not right. Pakistan is a creation of the British so we cannot give away the Indus civilization because of that.


There is also a mirror reflection in Pakistan, which identifies the culture with West Asia rather than India.
Yes. Some people there even call it Moenjodaro because they think Mohenjodaro might identify it with Krishna and some people here say it is Saraswati civilization and not Indus. I do not understand the logic of both. The beginning of Indus civilization is in fact in Baluchistan in Mehargarh. How can you deny that?

We can only hope that if the relations between India and Pakistan improve then we could also have joint teams exploring archeology.
Yes I have also been mooting that idea. What is important for us is that the great Harappans are undeniably our ancestors. They are the first civilized people in this subcontinent. Now why do you worry whether they were Aryans, non-Aryans, Dravidians etc. Let us study them thoroughly and how they merged with later streams of Indian civilization. These are important issues and not any body’s political agenda.

(This interview appeared in Ghadar Jari Hai--The Revolt Continues, Vol II, No. 4, Oct-Dec 2008, see www.ghadar.in )