Baisi

The geographic coordinates of Baisi Assembly constituency are: 25°49'30.0"N 87°42'13.0"E. This constituency falls in Purnia district of Bihar and in the Koshi region. Baisi shares its borders with five other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Baisi are: Amour, Kasba, Purnia, Kadwa, Balrampur. This constituency shares an inter-state border with West Bengal.

There were a total of 285163 registered voters on the electoral rolls for the 2025 Assembly election in Baisi Assembly constituency, of which 152254 were male, 132905 female and 4 of the third gender. In the 2020 Assembly elections, there were a total of 273738 registered voters, of which 142721 were male, 131004 female and 13 from the third gender. In the 2015 Assembly elections, there were a total of 246568 registered voters, of which 130230 were male, 116328 female and 9 from the third gender. In 2010 elections, there were a total of 190599 registered voters in this constituency, of which 100232 were male and 90367 female and 1 from the third gender.

The number of service voters in this Assembly constituency was 10 in 2020, 10 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 873, in 2020 it was 918, 893 in 2015, and 902 in 2010.

Baisi Assembly constituency will go to the polls in Phase 2 of the 2025 Bihar Assembly elections on Tuesday, November 11, 2025. The counting of votes is on Friday, November 14, 2025.

In the 2020 state Assembly elections, this seat voted in Phase 3 on Saturday, November 7, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 5 on Thursday, November 5, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 1 on Thursday, October 21, 2010 and the results were declared on Wednesday, November 24, 2010.

Assembly constituency no.57. Baisi comprises of the following areas of Purnia district in the Koshi region of Bihar: CD Blocks Baisi & Dagarua

This constituency covers an approximate area of 397.77 square kilometers and the geographic coordinates of Baisi is: 25°49'30.0"N 87°42'13.0"E.

A total of five Assembly constituencies in the state of Bihar share borders with Baisi constituency, which are: Amour, Kasba, Purnia, Kadwa, Balrampur. This constituency shares an inter-state border with West Bengal.

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Baisi constituency was 77.73%. In 2020, this seat registered a turnout of 65.35%, while it was 65.44% in 2015, and 64.33% in 2010.

In the 2020 Bihar Assembly elections, Syed Ruknuddin Ahmad of AIMIM won in this constituency beating Vinod Kumar of BJP by a margin of 16373 votes which was 9.16% of the total votes cast. In 2015, Abdus Subhan of RJD was the winner in this seat beating Binod Kumar of IND by a margin of 38740 votes which was 24.01% of the total votes polled in the constituency. In the 2010 Assembly elections, Santosh Kumar of BJP won this seat defeating of INC by a margin of 9250 votes which was 7.54% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Syed Ruknuddin Ahmad of AIMIM had a vote share of 38.27% in this seat. In the 2015 Assembly elections, Abdus Subhan of RJD got a vote share of 41.55% , In the 2010 Assembly elections, Santosh Kumar of BJP got a vote share of 32.58% in Baisi.