Sitamarhi

Demographic profile

There were a total of 303379 registered voters on the electoral rolls for the 2025 Assembly election in Sitamarhi Assembly constituency, of which 161097 were male, 142269 female and 13 of the third gender. In the 2020 Assembly elections, there were a total of 292345 registered voters, of which 155295 were male, 137029 female and 21 from the third gender. In the 2015 Assembly elections, there were a total of 259355 registered voters, of which 138927 were male, 120418 female and 210 from the third gender. In 2010 elections, there were a total of 224109 registered voters in this constituency, of which 121280 were male and 102829 female and 134 from the third gender.

The number of service voters in this Assembly constituency was 300 in 2020, 10 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 883, in 2020 it was 882, 867 in 2015, and 848 in 2010.

Poll dates

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

Extent

Assembly constituency no.28. Sitamarhi comprises of the following areas of Sitamarhi district in the Tirhut region of Bihar: CD Block Dumra

This constituency covers an approximate area of 188.37 square kilometers and the geographic coordinates of Sitamarhi is: 26°33'13.0"N 85°30'46.8"E.

A total of four Assembly constituencies in the state of Bihar share borders with Sitamarhi constituency, which are: Bajpatti, Riga, Belsand, Runnisaidpur. This constituency shares an inter-state border with .

Voter turnout

According to data released by the Election Commission of India, In 2020, this seat registered a turnout of 61.88%, while it was 63.48% in 2015, and 52.93% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Mithilesh Kumar of BJP won in this constituency beating Sunil Kumar of RJD by a margin of 11475 votes which was 6.35% of the total votes cast. In 2015, Sunil Kumar of RJD was the winner in this seat beating Sunil Kumar Alias Pintu of BJP by a margin of 14722 votes which was 8.96% of the total votes polled in the constituency. In the 2010 Assembly elections, Sunil Kumar Alias Pintu of BJP won this seat defeating Raghwendra Kumar Singh of LJP by a margin of 5221 votes which was 4.4% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Mithilesh Kumar of BJP had a vote share of 49.9% in this seat. In the 2015 Assembly elections, Sunil Kumar of RJD got a vote share of 49.62% , In the 2010 Assembly elections, Sunil Kumar Alias Pintu of BJP got a vote share of 43.59% in Sitamarhi.