Dumraon

Demographic profile

There were a total of 321712 registered voters on the electoral rolls for the 2025 Assembly election in Dumraon Assembly constituency, of which 170513 were male, 151196 female and 3 of the third gender. In the 2020 Assembly elections, there were a total of 318276 registered voters, of which 169548 were male, 148721 female and 7 from the third gender. In the 2015 Assembly elections, there were a total of 295508 registered voters, of which 159372 were male, 136128 female and 1907 from the third gender. In 2010 elections, there were a total of 241608 registered voters in this constituency, of which 130518 were male and 111090 female and 1392 from the third gender.

The number of service voters in this Assembly constituency was 2300 in 2020, 8 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 887, in 2020 it was 877, 854 in 2015, and 851 in 2010.

Poll dates

Dumraon 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 1 on Wednesday, October 28, 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 6 on Saturday, November 20, 2010 and the results were declared on Wednesday, November 24, 2010.

Extent

Assembly constituency no.201. Dumraon comprises of the following areas of Buxar district in the Bhojpur region of Bihar: CD Blocks Chaugain, Kesath & Nawanagar; Gram Panchayats Chilhari, Kushalpur, Bhojpur Kadim, Bhojpur Jadid, Chhatanwar, Nuaon, Sowan, Ariaon, Nandan, Lakhan Dihra & Dumraon (M) of Dumraon CD Block.

This constituency covers an approximate area of 482.12 square kilometers and the geographic coordinates of Dumraon is: 25°28'15.6"N 84°05'33.7"E.

A total of four Assembly constituencies in the state of Bihar share borders with Dumraon constituency, which are: Buxar, Brahampur, Dinara, Rajpur. This constituency shares an inter-state border with .

Voter turnout

According to data released by the Election Commission of India, in the 2025 Bihar Assembly elections, the estimated voter turnout in this Dumraon constituency was 60.3%. In 2020, this seat registered a turnout of 55.05%, while it was 57.28% in 2015, and 51.58% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Ajit Kumar Singh of CPIMLL won in this constituency beating Anjum Ara of JDU by a margin of 24415 votes which was 13.95% of the total votes cast. In 2015, Dadan Yadav of JDU was the winner in this seat beating Ram Bihari Singh of BLSP by a margin of 30339 votes which was 17.93% of the total votes polled in the constituency. In the 2010 Assembly elections, Dr Daud Ali of JDU won this seat defeating Sunil Kumar of RJD by a margin of 19846 votes which was 15.93% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Ajit Kumar Singh of CPIMLL had a vote share of 40.76% in this seat. In the 2015 Assembly elections, Dadan Yadav of JDU got a vote share of 47.9% , In the 2010 Assembly elections, Dr Daud Ali of JDU got a vote share of 34.14% in Dumraon.