Revising a paper from 2007 which was postponed because of intersections with the next paper which is still under preparation. The relevant parts of the next paper are now ready and so it is clearer which portions can be modified. Moreover I am visioting India from August 17 to September 17 and old friends like M.S. Raghunathan are insisting that I should give talks. So posts will be
rarer infrquent for a while (if anybody is looking at this stuff), though I post the links here mostly for myself. Meanwhile, I have read most of "The Flaming Feet" by D.R. Nagaraj and I think that it will help to 'understand' a bit about India.