For a Person from Mumbai it is easy to identify this person. He is Balasaheb Thackeray -- a leader of Shiv Sena party.
He was a cartoonist by profession and is a pretty smart guy. Press probably focusses on his comments and zooms in on the divisive aspects of it.
You should certainly try to get hold of magazine he used to edit -- Marmik. It is in marathi language -- but the cartoons speak the universal language. You will see what I mean.
Here's an interesting reference.
Origins of Nativism: The Emergence of Shiv Sena in Bombay Mary F. KatzensteinAsian Survey, Vol. 13, No. 4 (Apr., 1973), pp. 386-399
BBC Profile of the man is at http://news.bbc.co.uk/1/hi/world/south_asia/841488.stm