Chakai

Demographic profile

There were a total of 318581 registered voters on the electoral rolls for the 2025 Assembly election in Chakai Assembly constituency, of which 167082 were male, 151495 female and 4 of the third gender. In the 2020 Assembly elections, there were a total of 287038 registered voters, of which 152487 were male, 134537 female and 14 from the third gender. In the 2015 Assembly elections, there were a total of 266998 registered voters, of which 143239 were male, 123752 female and 20 from the third gender. In 2010 elections, there were a total of 228938 registered voters in this constituency, of which 122341 were male and 106597 female and 7 from the third gender.

The number of service voters in this Assembly constituency was 199 in 2020, 7 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 907, in 2020 it was 882, 864 in 2015, and 871 in 2010.

Poll dates

Chakai 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 1 on Wednesday, October 28, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 1 on Monday, October 12, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 4 on Monday, November 1, 2010 and the results were declared on Wednesday, November 24, 2010.

Extent

Assembly constituency no.243. Chakai comprises of the following areas of Jamui district in the Bhagalpur region of Bihar: CD Blocks Sono & Chakai.

This constituency covers an approximate area of 1123.94 square kilometers and the geographic coordinates of Chakai is: 24°36'15.8"N 86°21'58.7"E.

A total of four Assembly constituencies in the state of Bihar share borders with Chakai constituency, which are: Jamai, Jhajha, Sikandra, Belhar. This constituency shares an inter-state border with Jharkhand.

Voter turnout

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Chakai constituency was 72.79%. In 2020, this seat registered a turnout of 66.09%, while it was 56.32% in 2015, and 47.29% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Sumit Kumar Singh of IND won in this constituency beating Savitri Devi of RJD by a margin of 581 votes which was 0.31% of the total votes cast. In 2015, Savitri Devi of RJD was the winner in this seat beating Sumit Kumar Singh of IND by a margin of 12113 votes which was 8.06% of the total votes polled in the constituency. In the 2010 Assembly elections, Sumit Kumar Singh of JMM won this seat defeating Bijay Kumar Singh of LJP by a margin of 188 votes which was 0.17% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Sumit Kumar Singh of IND had a vote share of 24.02% in this seat. In the 2015 Assembly elections, Savitri Devi of RJD got a vote share of 31.31% , In the 2010 Assembly elections, Sumit Kumar Singh of JMM got a vote share of 20.15% in Chakai.