Nagercoil News Tamilnadu Union minister Pon Radhakrishnan says Karunanidhi birthday celebrations take state backward by 50 years Tagged in : Bihar Chennai Chief Minister Congress D Raja Derek O'Brien DMK General Secretary Karunanidhi Nagercoil Nitish Kumar Omar Abdullah Pon Radhakrishnan Puducherry Rahul Gandhi Sitaram Yechury Tamil Nadu Union minister V Narayanasamy vice president