Career
He was the Minister of Agriculture in the Government of Kerala. He represents the Chadayamangalam constituency in Kollam district in the Kerala Legislative Assembly. Born in 1955 to Purushothaman and Sulochana at Mullakkara, Chadayamangalam in Kollam district, Ratnakaran became a member in Communist Party of India in 1978.
He has served as All India Youth Federation (AIYF) State President and Secretary.
During his political career, Ratnakaran went to jail several times in connection with agitations, including "Job or Jail" strike.