Lalganj

The geographic coordinates of Lalganj Assembly constituency are: 25°51'01.4"N 85°14'08.9"E. This constituency falls in Vaishali district of Bihar and in the Tirhut region. Lalganj shares its borders with five other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Lalganj are: Vaishali, Parsa, Hajipur, Raja Pakar, Mahua. This constituency shares an inter-state border with .

There were a total of 341999 registered voters on the electoral rolls for the 2025 Assembly election in Lalganj Assembly constituency, of which 180029 were male, 161957 female and 13 of the third gender. In the 2020 Assembly elections, there were a total of 332710 registered voters, of which 177231 were male, 155463 female and 16 from the third gender. In the 2015 Assembly elections, there were a total of 310259 registered voters, of which 167419 were male, 142835 female and 451 from the third gender. In 2010 elections, there were a total of 254800 registered voters in this constituency, of which 138243 were male and 116557 female and 270 from the third gender.

The number of service voters in this Assembly constituency was 959 in 2020, 5 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 900, in 2020 it was 877, 853 in 2015, and 843 in 2010.

Lalganj 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 3 on Wednesday, October 28, 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.124. Lalganj comprises of the following areas of Vaishali district in the Tirhut region of Bihar: CD Blocks Lalganj & Bhagwanpur.

This constituency covers an approximate area of 253.69 square kilometers and the geographic coordinates of Lalganj is: 25°51'01.4"N 85°14'08.9"E.

A total of five Assembly constituencies in the state of Bihar share borders with Lalganj constituency, which are: Vaishali, Parsa, Hajipur, Raja Pakar, Mahua. 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 Lalganj constituency was 69.62%. In 2020, this seat registered a turnout of 58.03%, while it was 56.78% in 2015, and 56% in 2010.

In the 2020 Bihar Assembly elections, Sanjay Kumar Singh of BJP won in this constituency beating Rakesh Kumar of INC by a margin of 26299 votes which was 13.71% of the total votes cast. In 2015, Raj Kumar Sah of LJP was the winner in this seat beating Vijay Kumar Shukla of JDU by a margin of 20293 votes which was 11.52% of the total votes polled in the constituency. In the 2010 Assembly elections, Annu Shukla of JDU won this seat defeating Raj Kumar Sah of IND by a margin of 24145 votes which was 16.92% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Sanjay Kumar Singh of BJP had a vote share of 36.88% in this seat. In the 2015 Assembly elections, Raj Kumar Sah of LJP got a vote share of 45.91% , In the 2010 Assembly elections, Annu Shukla of JDU got a vote share of 40.8% in Lalganj.