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.
Every election in this seat
| Year | Winner | Runner-up | Margin | Margin % | Candidates | Turnout |
|---|---|---|---|---|---|---|
| 2025 | BJPBirendra Kumar | INCBraj Kishore Ravi | 50,533 | 22.64% | 6 | 67.3% |
| 2020 | BJPBIRENDRA KUMAR | INCNAGENDRA KUMAR VIKAL | 35,744 | 19.65% | 12 | 55.1% |
| 2015 | INCDR. ASHOK KUMAR | BJPMANJU HAZARI | 34,361 | 21.14% | 10 | 54.9% |
| 2010 | BJPMANJU HAJARI | RJDPITAMBER PASWAN | 12,119 | 9.47% | 6 | 51.4% |
| Nov 20051973 boundaries | RJDGAJENDRA PRASAD SINGH | JD(U)ASHOK KUMAR | 3,132 | 3.20% | 6 | 50.3% |
| Feb 20051973 boundaries | RJDGAJENDRA PRASAD SINGH | JD(U)ASHOK KUMAR | 14,922 | 14.91% | 8 | 49.8% |
| 20001973 boundaries | SAPASHOK KUMAR | RJDGAJENDRA PD. SINGH | 1,320 | 1.15% | 8 | 62.3% |
| 19951973 boundaries | JDGAJENDRA PRASAD SINGH | INCRAMASHRAY ROY | 29,858 | 27.64% | 27 | 61.6% |
| 19901973 boundaries | JDGAJENDRAPD. SINGH | INCRAMA KANT JHA | 7,477 | 6.59% | 23 | 69.1% |
| 19851973 boundaries | LKDBHOLA MANDAR | INCSATYENDRA NARAIN CHOUDHARY | 10,395 | 11.04% | 12 | 68.6% |
| 19801973 boundaries | INC(I)RAMASHARY RAI | JNPSCRAMLAKHAN SINGH | 34,602 | 37.27% | 6 | 75.8% |
| 19771973 boundaries | INDPRAYAG MANDAL | INCRAMSHRAY RAI | 4,134 | 6.14% | 6 | 64.4% |
| 19721966 boundaries | BJSRAMASHREY RAI | INCRAMSWARUP MANDAL | 7,209 | 10.04% | 4 | 72.9% |
| 19691966 boundaries | INCSAHDEO MAHATO | SSPRAMAKANT JHA | 612 | 1.03% | 4 | 65.8% |
| 19671966 boundaries | SSPR.K. JHA | INCP. MANDIR | 5,095 | 9.10% | 6 | 62.7% |
| 19621961 boundaries | PSPRAMAKANT JHA | INCBRAJMOHAN PRASAD SINGH | 12,318 | 38.55% | 3 | 48.9% |
Rows are matched by assembly constituency name within the state, so a seat that survived a delimitation keeps one continuous page. Where a year’s boundaries differ from the present ones the row says so — the name is the same, the territory is not.
