[2] He was born at Anjarakkandy, Kannur, Kerala on 13 March 1941 to M. K. Raghavan and N. Narayani.
Ramakrishnan's political career started as a trade unions activist among beedi workers.
He organised the beedi workers under Indian National Trade Union Congress (INTUC).
He was again elected to the Kerala legislative assembly in 1991 and became a minister in K. Karunakaran's cabinet.
[4] Ramakrishnan died on 1 October 2012 after prolonged illness at a private hospital in Mangalore.