Alinagar

The geographic coordinates of Alinagar Assembly constituency are: 26°06'02.5"N 86°15'43.2"E. This constituency falls in Darbhanga district of Bihar and in the Mithila region. Alinagar shares its borders with five other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Alinagar are: Darbhanga Rural, Benipur, Gaura Bauram, Jhanjharpur, Phulparas. This constituency shares an inter-state border with .

There were a total of 284522 registered voters on the electoral rolls for the 2025 Assembly election in Alinagar Assembly constituency, of which 148976 were male, 135543 female and 3 of the third gender. In the 2020 Assembly elections, there were a total of 275559 registered voters, of which 144316 were male, 131243 female and 0 from the third gender. In the 2015 Assembly elections, there were a total of 251508 registered voters, of which 131994 were male, 119514 female and 65 from the third gender. In 2010 elections, there were a total of 215293 registered voters in this constituency, of which 114477 were male and 100816 female and 48 from the third gender.

The number of service voters in this Assembly constituency was 181 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 910, in 2020 it was 909, 905 in 2015, and 881 in 2010.

Alinagar 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 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 2 on Sunday, October 24, 2010 and the results were declared on Wednesday, November 24, 2010.

Assembly constituency no.81. Alinagar comprises of the following areas of Darbhanga district in the Mithila region of Bihar: CD Blocks Alinagar, Tardih & Ghanshyampur.

This constituency covers an approximate area of 273.79 square kilometers and the geographic coordinates of Alinagar is: 26°06'02.5"N 86°15'43.2"E.

A total of five Assembly constituencies in the state of Bihar share borders with Alinagar constituency, which are: Darbhanga Rural, Benipur, Gaura Bauram, Jhanjharpur, Phulparas. 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 Alinagar constituency was 60.18%. In 2020, this seat registered a turnout of 57.4%, while it was 55.62% in 2015, and 47.33% in 2010.

In the 2020 Bihar Assembly elections, Mishri Lal Yadav of VIP won in this constituency beating Binod Mishra of RJD by a margin of 3101 votes which was 1.96% of the total votes cast. In 2015, Abdul Bari Siddiqui of RJD was the winner in this seat beating Mishri Lal Yadav of BJP by a margin of 13460 votes which was 9.64% of the total votes polled in the constituency. In the 2010 Assembly elections, Abdul Bari Siddiqui of RJD won this seat defeating Prabhakar Choudhary of JDU by a margin of 4989 votes which was 4.9% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Mishri Lal Yadav of VIP had a vote share of 38.62% in this seat. In the 2015 Assembly elections, Abdul Bari Siddiqui of RJD got a vote share of 48.29% , In the 2010 Assembly elections, Abdul Bari Siddiqui of RJD got a vote share of 37.22% in Alinagar.