Kargahar

The geographic coordinates of Kargahar Assembly constituency are: 25°07'53.4"N 83°55'38.6"E. This constituency falls in Rohtas district of Bihar and in the Bhojpur region. Kargahar shares its borders with seven other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Kargahar are: Rajpur, Dinara, Nokha, Sasaram, Chenari, Mohania, Ramgarh. This constituency shares an inter-state border with .

There were a total of 328327 registered voters on the electoral rolls for the 2025 Assembly election in Kargahar Assembly constituency, of which 175897 were male, 152421 female and 9 of the third gender. In the 2020 Assembly elections, there were a total of 324906 registered voters, of which 169621 were male, 155273 female and 12 from the third gender. In the 2015 Assembly elections, there were a total of 297018 registered voters, of which 159207 were male, 137800 female and 231 from the third gender. In 2010 elections, there were a total of 258763 registered voters in this constituency, of which 139654 were male and 119109 female and 98 from the third gender.

The number of service voters in this Assembly constituency was 505 in 2020, 11 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 867, in 2020 it was 915, 866 in 2015, and 853 in 2010.

Kargahar 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.

Assembly constituency no.209. Kargahar comprises of the following areas of Rohtas district in the Bhojpur region of Bihar: CD Block Kochas & Kargahar; Gram Panchayats Silari, Dumari, Konar, Parari & Patarhi of Sheosagar CD Block.

This constituency covers an approximate area of 619.14 square kilometers and the geographic coordinates of Kargahar is: 25°07'53.4"N 83°55'38.6"E.

A total of seven Assembly constituencies in the state of Bihar share borders with Kargahar constituency, which are: Rajpur, Dinara, Nokha, Sasaram, Chenari, Mohania, Ramgarh. 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 Kargahar constituency was 65.88%. In 2020, this seat registered a turnout of 59.85%, while it was 59.85% in 2015, and 57.87% in 2010.

In the 2020 Bihar Assembly elections, Santosh Kumar Mishra of INC won in this constituency beating Bashisth Singh of JDU by a margin of 4083 votes which was 2.1% of the total votes cast. In 2015, Bashisht Singh of JDU was the winner in this seat beating Birendra Kumar Singh of BLSP by a margin of 12907 votes which was 7.26% of the total votes polled in the constituency. In the 2010 Assembly elections, Ram Dhani Singh of JDU won this seat defeating Shiv Shankar Singh of LJP by a margin of 13197 votes which was 8.81% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Santosh Kumar Mishra of INC had a vote share of 30.76% in this seat. In the 2015 Assembly elections, Bashisht Singh of JDU got a vote share of 32.08% , In the 2010 Assembly elections, Ram Dhani Singh of JDU got a vote share of 36.19% in Kargahar.