Subrata Bhowal of Communist Party of India (Marxist) (CPI (M)) won the Purbasthali Assembly seat in 2006 and 2001 defeating his nearest rival Ansar Mondal of Trinamool Congress.
In 1996, Himangshu Dutta of CPI (M) defeated Ansar Mondal of Indian National Congress.
In 1991, 1987, 1982 and 1977, Manoranjan Nath of CPI (M) won the seat defeating Swapan Bhattacharya of Bharatiya Janata Party (BJP), Mukul Bhattacharya of Congress, Manabendra Kumar Roy of Congress and Rama Devi of Janata Party, in the respective years.
268 Purbasthali Dakshin Assembly constituency covers Nandai, Kankuria, Begpur, Atghoria Simlan, Dhatrigram and Sultanpur gram panchayats of Kalna I community development block and Nasratpur, Samudragarh, Bogpur, Sreerampur and Nadanghat gram panchayats of Purbasthali I community development block.
[3] Purbasthali assembly segment was earlier part of Katwa (Lok Sabha constituency).