She became the District Panchayat President of Alappuzha in 1995 at the age of 29. She remained in the position until 2004. In 2004, Sujatha defeated Ramesh Chennithala by a margin of 7,414 votes in the Mavelikara constituency.[2] Sujatha is the first CPI(M) candidate who has contested the elections in the party symbol to win from Mavelikara, which is considered to be a traditional UDF stronghold. She is also the first woman to represent Mavelikara in the Lok Sabha. She is now selected as CC Member of CPI(M).
2004: Elected to 14th Lok Sabha Member, Committee on Labour Member, Committee on Empowerment of women 2006-onwards Member, Committee on Empowerment of Women 2007 onwards Member, Standing Committee on Labour 1995-2004 President, District Panchayat, Alappuzha 1987-1990 Member (i) Senate, Kerala University 1988-1990 Syndicate, Kerala University 1998-2004 Central Committee, AIDWA 1990-1993 District Council
