Rosera Vidhan Sabha Election Data
Samastipur, Bihar
- Reservation:SC
- Registered Electorate:2,95,850
- Sitting MLA:Birendra Kumar (BJP)
- 2025 Winning Margin:50,533 votes (22.6%)
Rosera is a Vidhan Sabha constituency in Samastipur, Bihar, with 2,95,850 registered voters. The current MLA is Birendra Kumar of BJP, who won the 2025 election by a margin of 50,533 votes (22.6%). Voter turnout in the last election was %. Below you'll find caste demographics, election history since 2008 and booth-level data for Rosera.
Rosera Caste Data
Rosera Vidhan Sabha in Samastipur, Bihar has approximately 2,95,850 registered voters on the latest roll, with surname-level community estimates covering 40 groups commonly used in Bihar election analysis. MUSLIM is the largest share at 9.2%, followed by YADAV at 8.9%. This is a SC Vidhan Sabha seat at constituency level; the table below lists surnames with estimated voter counts and share of the profile—not booth-by-booth splits. For campaign planning and newsroom research, VoteSutra also provides booth-wise surname maps, swing booth reports and full dossiers on WhatsApp request.
| Surname | Total Voters | % |
|---|---|---|
| MUSLIM | 30,378 | 9.2% |
| YADAV | 29,388 | 8.9% |
| PASWAN | 28,397 | 8.6% |
| MAHTO | 25,425 | 7.7% |
| DAS | 19,151 | 5.8% |
| RAI | 16,840 | 5.1% |
- MUSLIM9.2%30,378
- YADAV8.9%29,388
- PASWAN8.6%28,397
- MAHTO7.7%25,425
- DAS5.8%19,151
- RAI5.1%16,840
Get booth-level caste data for Rosera
This aggregate view sits on top of a full booth-wise caste map. Delivered as CSV plus a visual heatmap within one working day.
Rosera Election Results (2008–2026)
BJP has won 3 of the last 8 elections in Rosera.
| Candidate | Party | Votes | Vote % |
|---|---|---|---|
| Birendra Kumar | BJP | 1,22,773 | 55.02% |
| Braj Kishore Ravi | INC | 72,240 | 32.38% |
| Rohit Kumar | JSP | 14,913 | 6.69% |
| Rajesh Kumar Paswan | Independent1 | 3,885 | 1.75% |
| Devendra Kumar Paswan | Bhartiya Mahasangh Party | 3,574 | 1.61% |
| Nota | NOTA | 3,016 | 1.36% |
| Amit Kumar Baitha | BSP | 2,748 | 1.24% |
- Birendra KumarBJP55.02%1,22,773
- Braj Kishore RaviINC32.38%72,240
- Rohit KumarJSP6.69%14,913
- Rajesh Kumar PaswanIndependent11.75%3,885
- Devendra Kumar PaswanBhartiya Mahasangh Party1.61%3,574
- NotaNOTA1.36%3,016
- Amit Kumar BaithaBSP1.24%2,748
Rosera Booth-Level Data
Party-specific booth rankings for BJP in Rosera are being compiled. Request early access on WhatsApp.
You are viewing 20 of 349 polling booths for BJP. To get the remaining swing and neutral booths, margin heatmaps and booth-level caste estimates for your campaign:
Common questions about Rosera
Rosera Vidhan Sabha constituency at a glance
In conclusion, Rosera Vidhan Sabha in Samastipur, Bihar is a SC Vidhan Sabha constituency with about 2,95,850 registered voters. The current MLA is Birendra Kumar (BJP), elected in 2025 by 50,533 votes (22.6%). Community estimates place MUSLIM as the largest group at roughly 9.2% of the seat profile. For general elections, Rosera sits within the Samastipur Lok Sabha segment. Election results on this page run back to 2008, with cycle-by-cycle margins and party shifts. You can preview the strongest and weakest polling booths; the full margin heatmap covers all 349 booths in the paid dossier. Whether you are planning a campaign, covering the seat as a journalist, or researching Bihar politics, this page is the free starting point—message VoteSutra on WhatsApp for the complete booth-wise caste and strategy report for Rosera.
Contesting Rosera?
Get the full booth-wise demographic and voting dossier for Rosera.