As a consequence of the orders of the Delimitation Commission, Sealdah Assembly constituency ceases to exist from 2011.
[2] A bye-election was held on 18 August 2009 following the resignation of the sitting MLA, Somen Mitra who was elected as MP In Parliament from Diamond Harbour (Lok Sabha constituency).Sikha Mitra of Trinamool Congress Defeated Prabir Deb of CPI.
In the 2006 elections, Somendra Nath Mitra of INC defeated his nearest rival Prabir Deb of CPI .# Swing calculated on Trinamool Congress+BJP vote percentages taken together in 2006.
Binoy Banerjee of Janata Party had won the seat in 1977 defeating Amar Prasad Chakraborty of Forward Bloc.
Sankar Prasad Mitra of Congress won the Muchipara seat in independent India’s first election in 1951.