: Started political life through Students Federation (1972); involved in various agitations led by S.F.I. and D.Y.F.I.; Was District Secretary, D.Y.F.I., Ernakulam (1984); Member, District Committee, C.P.I.(M) (1985); State President(1986), Central Committee Member (1988-95), State Secretary and All India Vice President, D.Y.F.I.; State Secretariat Member and Parliamentary Party Secretary(1996-98),C.P.I.(M) ; Chairman, Committee on Public Undertakings (1996-98) of Kerala Legislative Assembly; Syndicate Member, CUSAT (1991-95); First Chairman, Smart City, Kochi.Minister for Electricity and Co-operation (25.10.1998 to 31.05.2001) and Minister for Fisheries and Registration (18.05.2006 to 13.05.2011). Was Protem Speaker in 2016. Now, Member, State Committee, C.P.I.(M); C.I.T.U. State Vice President. Serves as C.P.I.(M) Parliamentary Party Secretary and Estimate Committee Chairman since 2016.