Asthawan

The geographic coordinates of Asthawan Assembly constituency are: 25°14'26.5"N 85°41'25.8"E. This constituency falls in Nalanda district of Bihar and in the Magadh region. Asthawan shares its borders with six other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Asthawan are: Barh, Mokama, Barbigha, Rajgir, Biharsharif, Harnaut. This constituency shares an inter-state border with .

There were a total of 301833 registered voters on the electoral rolls for the 2025 Assembly election in Asthawan Assembly constituency, of which 159726 were male, 142100 female and 7 of the third gender. In the 2020 Assembly elections, there were a total of 291267 registered voters, of which 155876 were male, 135382 female and 9 from the third gender. In the 2015 Assembly elections, there were a total of 270312 registered voters, of which 144925 were male, 125380 female and 522 from the third gender. In 2010 elections, there were a total of 232889 registered voters in this constituency, of which 125419 were male and 107470 female and 360 from the third gender.

The number of service voters in this Assembly constituency was 569 in 2020, 7 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 890, in 2020 it was 869, 865 in 2015, and 857 in 2010.

Asthawan 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 5 on Tuesday, November 9, 2010 and the results were declared on Wednesday, November 24, 2010.

Assembly constituency no.171. Asthawan comprises of the following areas of Nalanda district in the Magadh region of Bihar: CD Blocks Asthawan, Sarmera, Bind & Katrisarai.

This constituency covers an approximate area of 376.24 square kilometers and the geographic coordinates of Asthawan is: 25°14'26.5"N 85°41'25.8"E.

A total of six Assembly constituencies in the state of Bihar share borders with Asthawan constituency, which are: Barh, Mokama, Barbigha, Rajgir, Biharsharif, Harnaut. 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 Asthawan constituency was 56.04%. In 2020, this seat registered a turnout of 49.51%, while it was 49.24% in 2015, and 45.94% in 2010.

In the 2020 Bihar Assembly elections, Jitendra Kumar of JDU won in this constituency beating Anil Kumar of RJD by a margin of 11600 votes which was 8.05% of the total votes cast. In 2015, Jitendra Kumar of JDU was the winner in this seat beating Chhote Lal Yadav of LJP by a margin of 10444 votes which was 7.85% of the total votes polled in the constituency. In the 2010 Assembly elections, Jitendra Kumar of JDU won this seat defeating Kapildev Prasad Singh of LJP by a margin of 19570 votes which was 18.29% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Jitendra Kumar of JDU had a vote share of 35.75% in this seat. In the 2015 Assembly elections, Jitendra Kumar of JDU got a vote share of 44.29% , In the 2010 Assembly elections, Jitendra Kumar of JDU got a vote share of 50.64% in Asthawan.