I once stayed in Chennai for a few years. Can't say I liked that place a lot. Quite a lot of discrimination is done on "other people" in terms of language. Anyways keeping all that aside, I think Karunanidhi is one of the most treacherous among the Indian politicians( if he thinks himself as an Indian, if not then among the Tamil politicians).
See, what he did to his own nephew Dayanidhi Maran for a small Faux Pass. I was really dejected that Karuinanidhi had declared a fast for only one day and not a fast unto death. I do not think there are mny people even in Chennai who would have tried to hold him back from fasting onto death, not even his own son Stalin.