Karunanidhi is undergoing treatment at a private hospital for lung and throat infection.
President Pranab Mukherjee today enquired about the health of ailing DMK President M Karunanidhi.
Apart from the President, Governors of Tamil Nadu and Kerala C. Vidyasagar Rao and P Sathasivam respectively, also enquired about Karunanidhi's health, a party release said.
They enquired about the DMK chief's health with his son and party Treasurer M K Stalin, it said.
The DMK patriarch is undergoing treatment at a private hospital in Chennai for lung and throat infection.