General Secretary of the Communist Party of India (Marxist).Graduated from Madras Christian College.,M.Sc (Politics) University of Edinburgh.Rusticated for anti-apartheid protest. Joined CPI(M) 1970-aide to A.K. Gopalan, leader of the CPI(M) Parliamentary groups for two years. President - JNU Student's Union(1972-1973).President Students Federation of India (1974-1979).
Worked underground for one a half years during the Emergency in India in 1975-76.
Arrested twice. Spent 8 days in prison.Elected to Polit Bureau of CPI(M) in 1992.
Member, Editorial Board of `The Marxist’,. Managing Director of LeftWord Books-.
Author of books: i ) Language, Nationality and Politics in India (1972) etc-Married to Brinda Karat, Member Central