Security forces have been tightened at important places all over Tamil Nadu as the health condition of the DMK Chief and former TN Chief Minister Dr. Karunanidhi is critical.



Security has been increased in places like government offices, Schools, Colleges, houses of political leaders, statues of political leaders are given security. 



The health condition of Dr. Karunanidhi, who is undergoing treatment at Kauvery hospital is said to be critical.