Begusarai

The geographic coordinates of Begusarai Assembly constituency are: 25°29'04.9"N 86°09'11.9"E. This constituency falls in Begusarai district of Bihar and in the Mithila region. Begusarai shares its borders with six other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Begusarai are: Cheria Bariarpur, Bakhri, Sahebpur Kamal, Mathani, Teghra, Bachhwara. This constituency shares an inter-state border with .

There were a total of 340777 registered voters on the electoral rolls for the 2025 Assembly election in Begusarai Assembly constituency, of which 181149 were male, 159623 female and 5 of the third gender. In the 2020 Assembly elections, there were a total of 336598 registered voters, of which 179360 were male, 157230 female and 8 from the third gender. In the 2015 Assembly elections, there were a total of 311575 registered voters, of which 167593 were male, 143973 female and 287 from the third gender. In 2010 elections, there were a total of 243996 registered voters in this constituency, of which 131695 were male and 112303 female and 180 from the third gender.

The number of service voters in this Assembly constituency was 511 in 2020, 9 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 881, in 2020 it was 877, 859 in 2015, and 853 in 2010.

Begusarai Assembly constituency will go to the polls in Phase 1 of the 2025 Bihar Assembly elections on Thursday, November 6, 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 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.

Assembly constituency no.146. Begusarai comprises of the following areas of Begusarai district in the Mithila region of Bihar: CD Block Birpur; Gram Panchayats Babhangama, Maida Babhangama, Sahuri, Neenga, Bathauli of Barauni CD Block; Gram Panchayats Mohanpur, Chandpura, Bandwar, Suja, Sankh, Lakho, Hebatpur, Parna, Kusmaut, Kaith, Jinedpur, Neema, Panhas, Ajhaur, Khamhar, Rajaura & Begusarai (M) of Begusarai CD Block.

This constituency covers an approximate area of 214.97 square kilometers and the geographic coordinates of Begusarai is: 25°29'04.9"N 86°09'11.9"E.

A total of six Assembly constituencies in the state of Bihar share borders with Begusarai constituency, which are: Cheria Bariarpur, Bakhri, Sahebpur Kamal, Mathani, Teghra, Bachhwara. 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 Begusarai constituency was 66.44%. In 2020, this seat registered a turnout of 55.62%, while it was 54.51% in 2015, and 52.9% in 2010.

In the 2020 Bihar Assembly elections, Kundan Kumar of BJP won in this constituency beating Amita Bhushan of INC by a margin of 4554 votes which was 2.43% of the total votes cast. In 2015, Amita Bhushan of INC was the winner in this seat beating Surendra Mehta of BJP by a margin of 16531 votes which was 9.74% of the total votes polled in the constituency. In the 2010 Assembly elections, Surendra Mehta of BJP won this seat defeating Upendra Prasad Singh of LJP by a margin of 19618 votes which was 15.2% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Kundan Kumar of BJP had a vote share of 39.66% in this seat. In the 2015 Assembly elections, Amita Bhushan of INC got a vote share of 49.21% , In the 2010 Assembly elections, Surendra Mehta of BJP got a vote share of 39.21% in Begusarai.