• 1971,1972-77 Member,
West Bengal Legislative Assembly and 1982–84 • 1971-72 Cabinet Minister, Judiciary and Parliamentary Affairs (Home),
West Bengal • 1972-77 Cabinet Minister, Health and Family Planning and Water Supply, • 1973 Member, All India Congress Committee (A.I.C.C.) • 1977 President, District Congress Committee (D.C.C.) (I), North Calcutta, West Bengal • 1980-81 President, Pradesh Congress Committee (P.C.C.)(I), West Bengal • 1984 Elected to 8th
Lok Sabha • 1985-86 Union Minister of State, Planning • 1986 Union Minister of State, Food and Civil Supplies • 1986-88 Union Minister of State, Information and Broadcasting (Independent Charge) • 1988-89 Union Minister of State, Finance • 1989 Re-elected to 9th Lok Sabha (2nd term) • 1990 Member, Committee of Privileges Member, Consultative Committee, Ministry of Finance • 1990-91 Member, Committee on Public Accounts Member, Informal Consultative Committee, Railway Zone • 1991 Re-elected to 10th Lok Sabha (3rd term) • 1991-93 Union Minister of State, Information and Broadcasting (Independent Charge) • 1993-95 Union Minister of State, Coal (Independent Charge) • 1996 Re-elected to 11th Lok Sabha (4th term) • 1996-97 Member, Committee on Energy Member, Business Advisory Committee • 1998 Re-elected to 12th Lok Sabha (5th term) Chief Whip, West Bengal
Trinamool Congress Parliamentary Party • 1998-99 Member, Committee on Industry Member, Consultative Committee, Ministry of Urban Affairs and Employment Chairman, West Bengal Trinamool Congress • 1999 Re-elected to 13th Lok Sabha (6th term) • 13 Oct 1999 to 2004 Union Minister of State, External Affairs ==Books published==