List of by-elections to the West Bengal Legislative Assembly

The following is a list of by-elections held for the West Bengal Legislative Assembly, India, since its formation in 1946.

15th Assembly

2011

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
25 September 2011	125	Basirhat Uttar	Mostafa Bin Qaseem		Communist Party of India	ATM Abdullah		All India Trinamool Congress
	159	Bhabanipur	Subrata Bakshi		All India Trinamool Congress	Mamata Banerjee		All India Trinamool Congress

2012

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
12 June 2012	230	Daspur	Ajit Bhunia		All India Trinamool Congress	Mamata Bhunia		All India Trinamool Congress
	252	Bankura	Kashinath Misra		All India Trinamool Congress	Minati Misra		All India Trinamool Congress

2013

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
23 February 2013	51	English Bazar	Krishnendu Narayan Choudhury		Indian National Congress	Krishnendu Narayan Choudhury		All India Trinamool Congress
	70	Rejinagar	Humayun Kabir		Indian National Congress	Rabiul Alam Chowdhury		Indian National Congress
	293	Nalhati	Abhijit Mukherjee		Indian National Congress	Dipak Chatterjee		All India Forward Bloc

2014

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
13 September 2014	1	Basirhat Dakshin	Narayan Mukherjee		Communist Party of India (Marxist)	Samik Bhattacharya		Bharatiya Janata Party
	2	Chowrangee	Sikha Mitra		All India Trinamool Congress	Nayna Bandopadhyay		All India Trinamool Congress

2015

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
13 February 2015	1	Krishnaganj	Sushil Biswas		All India Trinamool Congress	Satyajit Biswas		All India Trinamool Congress

16th Assembly

Main article: 2016–2021 West Bengal Legislative Assembly by-elections

17th Assembly

2021

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
30 September 2021	159	Bhabanipur	Sovandeb Chattopadhyay		All India Trinamool Congress	Mamata Banerjee		All India Trinamool Congress
30 October 2021	7	Dinhata	Nisith Pramanik		Bharatiya Janata Party	Udayan Guha[1]		All India Trinamool Congress
	86	Santipur	Jagannath Sarkar		Bharatiya Janata Party	Braja Kishore Goswami[1]		All India Trinamool Congress
	109	Khardaha	Kajal Sinha		All India Trinamool Congress	Sovandeb Chattopadhyay[1]		All India Trinamool Congress
	127	Gosaba	Jayanta Naskar		All India Trinamool Congress	Subrata Mondal[1]		All India Trinamool Congress

2022

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
12 April 2022	161	Ballygunge	Subrata Mukherjee		All India Trinamool Congress	Babul Supriyo		All India Trinamool Congress

2023

Date	Constituency		MLA before election	Party before election		Elected MLA	Party after election
27 February 2023	60	Sagardighi	Subrata Saha		Trinamool Congress	Bayron Biswas[2]		Indian National Congress
5 September 2023	15	Dhupguri	Bishnupada Roy		Bharatiya Janata Party	Nirmal Chandra Roy		Trinamool Congress

2024

Date	Constituency		Previous MLA			Reason	Elected MLA
7 May 2024	62	Bhagabangola	Idris Ali		All India Trinamool Congress	Died on 16 February 2024[3]	Reyat Hossain Sarkar		All India Trinamool Congress
1 June 2024	113	Baranagar	Tapas Roy			Resigned on 4 March 2024[4]	Sayantika Banerjee
10 July 2024	35	Raiganj	Krishna Kalyani		Bharatiya Janata Party	Resigned on 27 March 2024[5]	Krishna Kalyani
	90	Ranaghat Dakshin	Mukut Mani Adhikari			Resigned on 19 April 2024[6]	Mukut Mani Adhikari
	94	Bagdah	Biswajit Das				Madhuparna Thakur
	167	Maniktala	Sadhan Pande		All India Trinamool Congress	Died on 20 February 2022[7][a]	Supti Pandey
13 November 2024	6	Sitai	Jagadish Chandra Barma Basunia			Elected to Lok Sabha on 4 June 2024	Sangita Roy
	14	Madarihat	Manoj Tigga		Bharatiya Janata Party		Jay Prakash Toppo
	104	Naihati	Partha Bhowmick		All India Trinamool Congress		Sanat Dey
	121	Haroa	Haji Nurul Islam				Sheikh Rabiul Islam
	236	Medinipur	June Malia				Sujoy Hazra
	251	Taldangra	Arup Chakraborty				Falguni Singhababu

Notes

1. The seat fell vacant due to the death of sitting MLA Sadhan Pande on 20th February 2022. However, by-polls to the seat couldn't be held even after 6 months of Pande's death (according to Indian law) because BJP candidate Kalyan Chaubey filed an election petition in the Calcutta High Court alleging irregularities in polling & demanded a recount of votes. The Representation of the People Act, 1951 forbids holding any polls to the seat until any election petition concerning that seat hasn't been resolved at the court.^[8] On 29 April 2024, Choubey withdrew his election petition from the court, making way for by-poll to the seat.^[9]