T. K. Rajeev Kumar was born in Thazhathupurrakal family in Kottayam district, Kerala. His school education was in MT seminary high school, Kottayam and SDV school, Alappuzha. His college studies started of from Government Arts College, Trivandrum and graduated from University College, Thiruvananthapuram. Soon after his studies, he joined State Bank of Travancore. He started his Malayalam film career as an assistant director with the Navodaya Production Company at the age of 21. He had his lessons from the film maker Jijo Punnose, son of Navodaya Appachan. His debut film was Chanakyan which had Kamal Hassan and Urmila Matondkar starring alongside Jayaram.
Kerala. Rajeev Kumar served as the Chairman of Kerala State Chalachitra Academy from 2003 to 2006. He was also the Director for the International Film Festival of Kerala from 2003 to 2006 and was the Vice Chairman of Kerala State Chalachitra Academy in 2002. He was nominated as Jury Chairman for Kerala State Film Awards 2007.