Chanpatia

Demographic profile

There were a total of 291944 registered voters on the electoral rolls for the 2025 Assembly election in Chanpatia Assembly constituency, of which 155603 were male, 136332 female and 9 of the third gender. In the 2020 Assembly elections, there were a total of 275439 registered voters, of which 147650 were male, 127775 female and 14 from the third gender. In the 2015 Assembly elections, there were a total of 246103 registered voters, of which 133891 were male, 112199 female and 155 from the third gender. In 2010 elections, there were a total of 198951 registered voters in this constituency, of which 107842 were male and 91109 female and 166 from the third gender.

The number of service voters in this Assembly constituency was 679 in 2020, 13 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 876, in 2020 it was 865, 838 in 2015, and 845 in 2010.

Poll dates

Chanpatia 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 2 on Tuesday, November 3, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 4 on Sunday, November 1, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 3 on Thursday, October 28, 2010 and the results were declared on Wednesday, November 24, 2010.

Extent

Assembly constituency no.7. Chanpatia comprises of the following areas of Paschim Champaran district in the Tirhut region of Bihar: CD Block Chanpatia; Gram Panchayats Chanayan Bandh, ahana Gani, Ratanmala, Sarisawa, Barawa Semaraghat, Garawa Harpur, Dumari, ahanwa Rampurwa, Dhokarahan, Baithania Bhanachak & Nautan Khurd of ajhaulia CD Block.

This constituency covers an approximate area of 375.21 square kilometers and the geographic coordinates of Chanpatia is: 26°52'28.6"N 84°31'51.6"E.

A total of six Assembly constituencies in the state of Bihar share borders with Chanpatia constituency, which are: Sikta, Narkatiaganj, Lauriya, Nautan, Bettiah, Sugauli. This constituency shares an inter-state border with .

Voter turnout

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Chanpatia constituency was 74.1%. In 2020, this seat registered a turnout of 63.84%, while it was 63.84% in 2015, and 55.77% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Umakant Singh of BJP won in this constituency beating Abhishek Ranjan of INC by a margin of 13469 votes which was 7.66% of the total votes cast. In 2015, Prakash Rai of BJP was the winner in this seat beating N N Sahi of JDU by a margin of 464 votes which was 0.3% of the total votes polled in the constituency. In the 2010 Assembly elections, Chandra Mohan Rai of BJP won this seat defeating Ejaj Hussain of BSP by a margin of 23412 votes which was 21.1% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Umakant Singh of BJP had a vote share of 47.69% in this seat. In the 2015 Assembly elections, Prakash Rai of BJP got a vote share of 39.04% , In the 2010 Assembly elections, Chandra Mohan Rai of BJP got a vote share of 40.41% in Chanpatia.