1957 West Bengal Legislative Assembly election
The West Bengal state assembly election of 1957 were part of a series of state assembly elections in 1957.
State Reorganization
On 1 November 1956, under States Reorganisation Act, 1956, a portion of the Purnea district east of the river Mahananda and the Purulia sub-district of the Manbhum district in the south were transferred from Bihar to West Bengal. Thus, assembly constituencies in West Bengal increased from 187 to 195 during 1957 assembly elections.Alliances
On the political left two alliances had emerged; the United Left Election Committee and the United Left Front. A third alliance was the United Democratic People's Front, consisting of Bharatiya Jana Sangh, Hindu Mahasabha and the Revolutionary Communist Party of India.Results
Alliance wise result
The election was won by the Indian National Congress, who got a majority of its own in the assembly. The communists became the largest opposition party.| Party/Alliance | Own | % |
| Indian National Congress | 152 | 46.14% |
| United Left Election Committee | 80 | 33.6% |
| United Left Front | 2 | 2.45% |
| United Democratic People's Front | 0 | 3.44% |