Ranaghat Uttar Paschim is a key legislative assembly constituency in West Bengal’s Nadia district. It is a general category Assembly seat.
In the 2021 Assembly elections, the constituency had 265,846 electors and recorded 223,193 valid votes. Bharatiya Janata Party candidate Parthasarathi Chatterjee won the seat with 113,637 votes, defeating the All India Trinamool Congress’s Sankar Singha, who secured 90,509 votes. The margin of victory was 23,128 votes.
In the 2016 Assembly elections, Ranaghat Uttar Paschim had 243,481 electors and 210,586 valid votes. Congress candidate Sankar Singha won the seat with 109,607 votes, while Trinamool Congress candidate Parthasarathi Chatterjee (Babu) finished second with 86,187 votes, losing by a margin of 23,420 votes.
Earlier, in the 2011 Assembly elections, the constituency had 211,540 electors and 186,337 valid votes. Trinamool Congress candidate Partha Sarathi Chatterjee (Babu) won the seat with 101,395 votes, defeating CPI(M) candidate Mina Bhattacharya, who secured 74,051 votes. The margin of victory was 27,344 votes.
The constituency had 267,218 registered voters in 2024, up from 265,846 in 2021 and 254,242 in 2019. According to the 2011 Census, Scheduled Castes accounted for 29.80 per cent of the population and Scheduled Tribes for 2.25 per cent.
Ranaghat Uttar Paschim has a predominantly urban profile, with 72.50 per cent of voters residing in urban areas and 27.50 per cent in rural pockets. Voter turnout has remained consistently high, staying above 80 per cent. It peaked at 88.09 per cent in 2011 and declined to 82.30 per cent in 2024. In the intervening elections, turnout stood at 86.56 per cent in 2016, 84.43 per cent in 2019 and 83.96 per cent in 2021.