Agiaon

The geographic coordinates of Agiaon Assembly constituency are: 25°22'14.2"N 84°33'43.9"E. This constituency falls in Bhojpur district of Bihar and in the Bhojpur region. Agiaon shares its borders with five other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Agiaon are: Sandesh, Paliganj, Arwal, Tarari, Jagdishpur. This constituency shares an inter-state border with .

There were a total of 260696 registered voters on the electoral rolls for the 2025 Assembly election in Agiaon Assembly constituency, of which 138704 were male, 121992 female and 0 of the third gender. In the 2020 Assembly elections, there were a total of 268019 registered voters, of which 145196 were male, 122823 female and 0 from the third gender. In the 2015 Assembly elections, there were a total of 250962 registered voters, of which 137333 were male, 113625 female and 702 from the third gender. In 2010 elections, there were a total of 200627 registered voters in this constituency, of which 109667 were male and 90960 female and 344 from the third gender.

The number of service voters in this Assembly constituency was 1432 in 2020, 4 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2025 was 880, in 2020 it was 846, 827 in 2015, and 829 in 2010.

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

Assembly constituency no.195. Agiaon comprises of the following areas of Bhojpur district in the Bhojpur region of Bihar: CD Blocks Charpokhari, Garhani & Agiaon.

This constituency covers an approximate area of 366.52 square kilometers and the geographic coordinates of Agiaon is: 25°22'14.2"N 84°33'43.9"E.

A total of five Assembly constituencies in the state of Bihar share borders with Agiaon constituency, which are: Sandesh, Paliganj, Arwal, Tarari, Jagdishpur. 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 Agiaon constituency was 56.28%. In 2020, this seat registered a turnout of 52.54%, while it was 52.05% in 2015, and 46.04% in 2010.

In the 2020 Bihar Assembly elections, Manoj Manzil of CPIMLL won in this constituency beating Prabhunath Prasad of JDU by a margin of 48550 votes which was 34.53% of the total votes cast. In 2015, Prabhunath Prasad of JDU was the winner in this seat beating Shivesh Kumar of BJP by a margin of 14704 votes which was 11.26% of the total votes polled in the constituency. In the 2010 Assembly elections, Shivesh Kumar of BJP won this seat defeating Suresh Paswan of RJD by a margin of 5249 votes which was 5.68% of the total votes polled for the seat.

In the 2020 Bihar Assembly elections, Manoj Manzil of CPIMLL had a vote share of 61.39% in this seat. In the 2015 Assembly elections, Prabhunath Prasad of JDU got a vote share of 40.03% , In the 2010 Assembly elections, Shivesh Kumar of BJP got a vote share of 31.68% in Agiaon.