[2] In the 2016 elections, the 6 times MLA Ajoy Dey was defeated by the West Bengal State Youth Congress, President, Arindam Bhattacharya.

In the 2011 election, Ajoy Dey of Congress defeated his nearest rival Yar Mullick of RCPI.

In the 2006,[16] 2001,[15] 1996[14] and 1991[13] state assembly elections, Ajoy Dey of Congress won the Santipur seat, defeating his nearest rivals Sanatanu Chakrabarti of CPI (M), Badal Basak, Independent, Bimalananda Mukherjee of RCPI (R), and Asim Ghosh of RCPI in respective years.

In 1987,[12] 1982[11] and 1977,[10] Bimalananda Mukherjee, RCPI/Independent candidate defeated Ajay Dey, Asamanja De (both of Congress) and Jnanendra Nath Pramanik of Janata Party in the respective years.

[4] In independent India's first election in 1951, Sashi Bhusan Khan of Congress won the Santipur seat.