In the 2006[16] and 2001[15] state assembly elections Tarak Bandopadhyay representing Trinamool Congress won the 140 Cossipur assembly seat defeating Salil Chatterjee of CPI (M), and Bijoy Bhattacharjee of CPI(M) respectively. In 1996,[14] Tarak Bandopadhyay representing Congress defeated Anup Das of CPI(M). Dipak Chanda of CPI(M) defeated Prafulla Kanti Ghosh of Congress in 1991[13] and 1987.[12] In 1982,[11] Prafulla Kanti Ghosh of Congress defeated Buddhadeb Bhattacharya of CPI(M). In 1977, Buddhadeb Bhattacharya of CPI(M) defeated Prafulla Kanti Ghosh of Congress.[10][17]
1951-1972
The Cossipore seat was won by Prafulla Kanti Ghosh of Congress defeating his nearest rival Paresh Nath Banerjee of CPI(M) in 1972[9] and Krishna Gopal Basu of CPI(M) in 1971.[8] Vishnu Gopal Basu of CPI(M) defeated Sushil Kumar Paul of Congress in 1969.[7] S.K.Roy of Congress defeated P.Dasguta of CPI(M) in 1967.[6] Sunil Kumar Dasgupta of Congress won in 1962[5] defeating Mohit Kumar Moitra of CPI(M). Deben Sen of PSP won in 1957[4] defeating Biswanath Roy of Congress. Biswanath Roy of Congress won in independent India’s first general election in 1951 defeating Jyotirmoy Sharma of CPI.[3]