He was a non vegetarian now turned vegetarian. He also claims that the secret of his energy and success lies in yoga and daily practice keeps him young.

He has married three times his wives are Mrs. Padmavathy, Mrs. Dayalu Ammal and Mrs. Rajathiammal.

His sons are M.K. Stalin,M.K. Azhagiri,M.K Muthu , M.K Tamilarasu and daughters are Selvi and Kanimozhi is a Tamil poet and a Rajya Sabha Member.