Dinara

Demographic profile

There were a total of 304267 registered voters on the electoral rolls for the 2025 Assembly election in Dinara Assembly constituency, of which 161450 were male, 142814 female and 3 of the third gender. In the 2020 Assembly elections, there were a total of 301575 registered voters, of which 159091 were male, 142478 female and 6 from the third gender. In the 2015 Assembly elections, there were a total of 273684 registered voters, of which 147441 were male, 126238 female and 683 from the third gender. In 2010 elections, there were a total of 237760 registered voters in this constituency, of which 128018 were male and 109742 female and 279 from the third gender.

The number of service voters in this Assembly constituency was 1167 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 885, in 2020 it was 896, 856 in 2015, and 857 in 2010.

Poll dates

Dinara 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 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 2 on Friday, October 16, 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.210. Dinara comprises of the following areas of Rohtas district in the Bhojpur region of Bihar: CD Blocks Dinara, Dawath & Surajpura.

This constituency covers an approximate area of 452.02 square kilometers and the geographic coordinates of Dinara is: 25°04'24.2"N 84°06'09.0"E.

A total of eight Assembly constituencies in the state of Bihar share borders with Dinara constituency, which are: Dumraon, Brahampur, Jagdishpur, Tarari, Karakat, Nokha, Kargahar, Rajpur. 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 56.35%, while it was 55.02% in 2015, and 50.59% in 2010.

Total voters

Victory margin

In the 2020 Bihar Assembly elections, Vijay Kumar Mandal of RJD won in this constituency beating Rajendra Prasad Singh of LJP by a margin of 8228 votes which was 4.83% of the total votes cast. In 2015, Jai Kumar Singh of JDU was the winner in this seat beating Rajendra Prasad Singh of BJP by a margin of 2691 votes which was 1.79% of the total votes polled in the constituency. In the 2010 Assembly elections, Jay Kumar Singh of JDU won this seat defeating Sita Sundari Devi of RJD by a margin of 16610 votes which was 13.81% of the total votes polled for the seat.

Winner vote share (%)

In the 2020 Bihar Assembly elections, Vijay Kumar Mandal of RJD had a vote share of 34.97% in this seat. In the 2015 Assembly elections, Jai Kumar Singh of JDU got a vote share of 42.98% , In the 2010 Assembly elections, Jay Kumar Singh of JDU got a vote share of 39.22% in Dinara.