ROSERA
Assembly seat no. 139 in Bihar · reserved for Scheduled Castes · Vidhan Sabha seat contested 16 times since 1962.
Bihar also has a Lok Sabha constituency called ROSERA. It is a different territory with a different electorate — see its 12 results.
Winner, Feb 2005
GAJENDRA PRASAD SINGH
RJD
Elections held
16
1962–2025
Most successful party
BJP
won 3 of 16
Margin, Feb 2005
14,922
14.91% of valid votes
Result, Feb 2005
Runner-up
JD(U)ASHOK KUMAR
- Votes
- 30,984
- Vote share
- 30.96%
- Behind by
- 14,922
Electors
2,01,119
Total votes polled
1,00,087
Valid votes
1,00,087
NOTA votes
—
Turnout
49.8%
Full result, Feb 2005
8 candidates · 1,00,087 valid votes
GAJENDRA PRASAD SINGHRJDwon
45,906
45.9%
ASHOK KUMARJD(U)
30,984
31.0%
VIJAY KUMAR CHAUDHRYINC
13,761
13.8%
RAM KU.PR.SINGHIND
2,924
2.9%
UPENDRA DASBSP
2,332
2.3%
IMTEYAZ ALAMAD
1,595
1.6%
AWADHESH KUMAR JHAIND
1,541
1.5%
YOGENDRA MALIKIND
1,044
1.0%
Past results
Most recent 5 of 16 elections
| Year | Winner | Party | Votes | Vote share | Runner-up | Margin |
|---|---|---|---|---|---|---|
| 2025 | Birendra Kumar | BJP | 1,22,773 | 55.02% | Braj Kishore Ravi | 50,533 |
| 2020 | BIRENDRA KUMAR | BJP | 87,163 | 47.93% | NAGENDRA KUMAR VIKAL | 35,744 |
| 2015 | DR. ASHOK KUMAR | INC | 85,506 | 52.59% | MANJU HAZARI | 34,361 |
| 2010 | MANJU HAJARI | BJP | 57,930 | 45.29% | PITAMBER PASWAN | 12,119 |
| Nov 2005 | GAJENDRA PRASAD SINGH | RJD | 38,142 | 38.96% | ASHOK KUMAR | 3,132 |
Who has held it
Wins by party across every election above
Turnout and closeness over time
Turnout
Winning margin
Frequently asked
Straight answers to the questions this page exists to answer.
Who won the ROSERA assembly constituency in 2025?
Birendra Kumar (BJP) won ROSERA in 2025, by a margin of 50,533 votes.
Which party has won ROSERA the most times?
BJP, with 3 of the 16 wins recorded since 1962.
How many times has ROSERA gone to the polls?
16 times, from 1962 to 2025.
Who has won ROSERA the most times?
GAJENDRA PRASAD SINGH, with 3 wins between 1995 and 2005.
