In the 2006 elections to the state assembly Shyamal Naskar of CPI(M) won the Sonarpur assembly seat reserved for scheduled castes defeating his nearest rival Nirmal Chandra Mandal of Trinamool Congress. Contests in most years were multi cornered but only winners and runners are being mentioned. In 2001, Nirmal Chandra Mandal of Trinamool Congress defeated Abha Mandal of CPI(M). Bhadreswar Mondal of CPI(M) defeated Nirmal Mandal of Congress in 1996 and 1991, and Sovaranjan Sardar of Congress in 1986. Gangadhar Naskar of CPI(M) defeated Ramkanta Mandal of ICS in 1982 and Gourhari Sardar of Congress in 1977.