It was Karunanidhi who promoted Al Umma and when BJP and moderate islamic institutions warned state and central govt(ever useless DeveGowda and Gujaral) Karunanidhi forced them to turn a dumb ear as he wanted to appease the minorities.
The law and order gradually deteriorated under Karunanidi's rule and finally led to the Coimbatore blast.
With the patronage of Karunanidhi and left parties of Kerela this criminal (Madhani) is allowed to go scotfree
I strongly say these politicians should get severe punishments as an actor like Sanjay Dutt gets.