President, Village PanchayatBoard, Kattampoondi (1965-1969)

Chairman, Panchayat Union, Distt. Tiruvannamalai (1970-1975)

Member, Tamil Nadu Legislative Assembly (two terms) (1977-80 and 1980-84)

President, Dravida Munnetra Kazhagam (D.M.K.), Distt. Committee, Tiruvannamalai (1982 onwards)

Elected to 11th Lok Sabha (1996)

Member, Committee on Urban and Rural Development (1996-98)

Re-elected to 12th Lok Sabha (2nd term) (1998)

Member, Committee on Transport and Tourism (1998-1999)

Re-elected to 13th Lok Sabha (3rd term) (1999)

Member, Committee on Urban and Rural Development (1999-2000)

Member, Consultative Committee, Ministry of Health and Family Welfare (2000-2004)

Re-elected to 14th Lok Sabha( 4th term) (2004)

Member, Committee on Chemicals andFertilizers (5 Aug. 2007 onwards)