Bettiah

The geographic coordinates of Bettiah Assembly constituency are: 26°45'40.7"N 84°36'42.8"E. This constituency falls in Paschim Champaran district of Bihar and in the Tirhut region. Bettiah shares its borders with six other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Bettiah are: Lauriya, Nautan, Narkatia, Valmiki Nagar, Narkatiaganj, Sugauli. This constituency shares an inter-state border with .

There were a total of 290424 registered voters on the electoral rolls for the 2025 Assembly election in Bettiah Assembly constituency, of which 153193 were male, 137226 female and 5 of the third gender. In the 2020 Assembly elections, there were a total of 284268 registered voters, of which 151263 were male, 133004 female and 1 from the third gender. In the 2015 Assembly elections, there were a total of 249093 registered voters, of which 134685 were male, 114408 female and 397 from the third gender. In 2010 elections, there were a total of 192145 registered voters in this constituency, of which 104961 were male and 87184 female and 182 from the third gender.

The number of service voters in this Assembly constituency was 538 in 2020, 0 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 896, in 2020 it was 879, 849 in 2015, and 831 in 2010.

Bettiah 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.

Assembly constituency no.8. Bettiah comprises of the following areas of Paschim Champaran district in the Tirhut region of Bihar: CD Block Bettiah; Gram Panchayats ohaddipur, ajhaulia, Parsa, Bahuarawa, Gudara, Jaukatia, Bakharia, Rulahi, Rajabhar, Karamawa, al Saraiya, Ramnagar Bankat, Amawa ajhar, ajharia Sheikh, Ahawar Kuria, adhopur, Senuaria & Bishambharpur of ajhaulia CD Block.

This constituency covers an approximate area of 217.12 square kilometers and the geographic coordinates of Bettiah is: 26°45'40.7"N 84°36'42.8"E.

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

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Bettiah constituency was 67.11%. In 2020, this seat registered a turnout of 56.29%, while it was 59.35% in 2015, and 55.26% in 2010.

In the 2020 Bihar Assembly elections, Renu Devi of BJP won in this constituency beating Madan Mohan Tiwari of INC by a margin of 18079 votes which was 11.3% of the total votes cast. In 2015, Madan Mohan Tiwari of INC was the winner in this seat beating Renu Devi of BJP by a margin of 2320 votes which was 1.57% of the total votes polled in the constituency. In the 2010 Assembly elections, Renu Devi of BJP won this seat defeating Anil Kumar Jha of IND by a margin of 28789 votes which was 27.12% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Renu Devi of BJP had a vote share of 52.83% in this seat. In the 2015 Assembly elections, Madan Mohan Tiwari of INC got a vote share of 45.26% , In the 2010 Assembly elections, Renu Devi of BJP got a vote share of 39.57% in Bettiah.