The prestigious Kolkata South constituency, from where Trinamool Congress chief Mamata Banerjee is contesting for the sixth time in a row, has undergone a sea change after delimitation with five new assembly segments added.
Mamata would face her old CPI-M rival Rabin Deb from the seat in the May 13 Lok Sabha poll.
The constituency, bordering Jadavpur one one side and Kolkata North on the other, has in the past elected prominent Congress leaders like Priya Ranjan Dasmunshi and Bhola Nath Sen, besides CPI-M leader Ganesh Ghose.
Since 1972, this constituency did not elect the same person twice, but Mamata was the only exception winning the seat five consecutive times.
PR Dasmunshi had won the seat for Congress in 1972 and Dilip Chakraborty of Bharatiya Lok Dal in 1977 riding the Janata party wave. CPI-M’s Satyasadhan Chakraborty wrested it in 1980, while Bhola Sen of Congress and Biplab Dasgupta of CPI-M won it in 1984 and 1989 respectively.