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23. Riga is one of the 70 Assembly (Vidhan Sabha) constituencies in Bihar. This constituency is located in the Tirhut region. Bihar is located in the East region of India. This seat can be classified as: Rural and falls in the Sitamarhi district of Bihar. The reservation status of this constituency is: General. 23. Riga Assembly constituency is part of the 4. Sheohar (General) Lok Sabha constituency and can be classified as Rural.


Location

The geographic coordinates of Riga Assembly constituency are: 26°39'46.1"N 85°21'51.1"E. This constituency falls in Sitamarhi district of Bihar and in the Tirhut region. Riga shares its borders with six other Assembly constituencies. Other Bihar Assembly constituencies adjacent to Riga are: Dhaka, Chiraia, Sheohar, Belsand, Sitamarhi, Bathnaha. This constituency shares an inter-state border with Nepal.

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Riga Assembly election results

2020
PartyParty votes polledVotes %Candidate name
BJP95,22653.07%
Moti Lal Prasad
Winner
Margin:
32,495 (18.108%)
Winner
INC62,73134.96%Amit Kumar
BSP4,2552.37%Munni Singh
IND2,6171.46%Girdhari Sah
BMUP2,3431.31%Samsuddin Ansari
IND1,5830.88%Devendra Kumar Sinha
IND1,5740.88%Chandrika Prasad
NCP1,4100.79%Rambabu Sah S/O-Shri Nathuni Sah
NOTA8370.47%Nota
RJSPS7040.39%Mohan Singh
2015
2010

Demographic profile

In the 2020 Assembly elections, there were a total of 305473 registered voters, of which 162546 were male, 142629 female and 284 from the third gender. In the 2015 Assembly elections, there were a total of 282472 registered voters, of which 150838 were male, 131620 female and 252 from the third gender. In 2010 elections, there were a total of 229978 registered voters in this constituency, of which 122743 were male and 107235 female and 150 from the third gender.

The number of service voters in this Assembly constituency was 14 in 2020, 14 in 2015, and 0 in 2010.

The electorate gender ratio (number of female voters per 1000 male voters) in this constituency in 2020 was 877, 873 in 2015, and 874 in 2010.

Poll dates

In the 2020 state Assembly elections, this seat voted in Phase 3 on Saturday, November 7, 2020 and the results were declared on Tuesday, November 10, 2020.

In the 2015 state Assembly elections, this seat voted in Phase 4 on Sunday, November 1, 2015 and the results were declared on Sunday, November 8, 2015.

In the 2010 polls, this constituency voted in Phase 2 on Sunday, October 24, 2010 and the results were declared on Wednesday, November 24, 2010.


Extent

Assembly constituency no.23. Riga comprises of the following areas of Sitamarhi district in the Tirhut region of Bihar: CD Blocks Bairgania, Suppi & Riga.

This constituency covers an approximate area of 274.76 square kilometers and the geographic coordinates of Riga is: 26°39'46.1"N 85°21'51.1"E.

A total of six Assembly constituencies in the state of Bihar share borders with Riga constituency, which are: Dhaka, Chiraia, Sheohar, Belsand, Sitamarhi, Bathnaha. This constituency shares an inter-state border with Nepal.

Voter turnout

According to data released by the Election Commission of India, In 2020, this seat registered a turnout of 57.5%, while it was 57.32% in 2015, and 53.06% in 2010.

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Total voters

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Victory margin

In the 2020 Bihar Assembly elections, Moti Lal Prasad of BJP won in this constituency beating Amit Kumar of INC by a margin of 32495 votes which was 18.11% of the total votes cast. In 2015, Amit Kumar of INC was the winner in this seat beating Moti Lal Prasad of BJP by a margin of 22856 votes which was 14.13% of the total votes polled in the constituency. In the 2010 Assembly elections, Motilal Prasad of BJP won this seat defeating Amit Kumar of INC by a margin of 22327 votes which was 18.3% of the total votes polled for the seat.

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Winner vote share (%)

In the 2020 Bihar Assembly elections, Moti Lal Prasad of BJP had a vote share of 53.07% in this seat. In the 2015 Assembly elections, Amit Kumar of INC got a vote share of 48.97% , In the 2010 Assembly elections, Motilal Prasad of BJP got a vote share of 39.86% in Riga.

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Sheohar
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Bathnaha

First Published: April 18, 2024, 05:40 IST

Last Updated: October 16, 2025 at 05:11 PM IST

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23. Riga

CONSTITUENCY DETAILS
Reservation status:General
Constituency type:Rural
State:Bihar
District(s):Sitamarhi
Region (India):East
Region (State):Tirhut
Lok Sabha constituency:Sheohar
Alternate name:Sitamarhi
2025 ASSEMBLY ELECTIONS
Total voters:325122
Male voters:172123
Female voters:152988
Third gender voters:11
Electorate gender ratio:889
Poll phase:2
Poll date:November 11, 2025
Results (Counting of votes):November 14, 2025

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Assembly cons. Results

Cons. name202020152010
Valmiki Nagar
JDU
IND
JDU
Ramnagar
BJP
BJP
BJP
Narkatiaganj
BJP
INC
BJP
Bagaha
BJP
BJP
JDU
Lauriya
BJP
BJP
IND
Nautan
BJP
BJP
JDU
Chanpatia
BJP
BJP
BJP
Bettiah
BJP
INC
BJP
Sikta
CPIMLL
JDU
IND
Raxaul
BJP
BJP
BJP