ISLAMPUR
Assembly seat no. 174 in Bihar · Vidhan Sabha seat contested 16 times since 1962.
Every election in this seat
| Year | Winner | Runner-up | Margin | Margin % | Candidates | Turnout |
|---|---|---|---|---|---|---|
| 2025 | JD(U)Ruhail Ranjan | RJDRakesh Kumar Raushan | 32,239 | 17.18% | 13 | 61.9% |
| 2020 | RJDRakesh Kumar Roushan | JD(U)Chandra Sen Prasad | 3,698 | 2.26% | 17 | 55.8% |
| 2015 | JD(U)CHANDRASEN PRASAD | BJPBIRENDRA GOPE | 22,602 | 15.75% | 22 | 53.0% |
| 2010 | JD(U)RAJIB RANJAN | RJDVIRENDRA GOP | 23,808 | 20.81% | 10 | 48.1% |
| Nov 20051973 boundaries | JD(U)RAMSWAROOP PRASAD | CPIRAKESH KUMAR ROSHAN | 19,098 | 21.06% | 6 | 41.5% |
| Feb 20051973 boundaries | JD(U)RAMSWAROOP PRASAD | CPIRAKESH KUMAR ROSHAN | 20,060 | 20.82% | 13 | 41.8% |
| 20001973 boundaries | SAPRAMSWAROOP PRASAD | RJDNARESH YADAV | 48,310 | 30.24% | 9 | 77.8% |
| 19951973 boundaries | CPIKRISHNA BALLABH PRASAD | SAPRAJIV RANJAN | 10,244 | 8.21% | 28 | 65.0% |
| 19901973 boundaries | CPIKRISHNA BALLABH PRASAD | INCPANKAJ KUMAR SINHA | 6,517 | 4.39% | 20 | 78.8% |
| 19851973 boundaries | INCRAM SWAROOP PRASAD | CPIKRISHAN BALLABH PD. SINGH | 429 | 0.37% | 10 | 74.5% |
| 19801973 boundaries | INC(I)PANKAJ KUMAR SINHA | CPIKRISHNA VALLABH PRASAD SINGH | 1,613 | 1.51% | 6 | 76.8% |
| 19771973 boundaries | CPIKRISHNA VALLABH PRASAD SINGH | JNPVIJAY LAXMI CHAUR | 14,035 | 14.49% | 12 | 75.3% |
| 19721966 boundaries | INDRAMSHARAN PRASAD SINGH | NCORAMCHANDRA SINGH | 1,536 | 1.80% | 7 | 68.8% |
| 19691966 boundaries | PSPRAMSARAN PRASAD SINGH | CPIKRISHNABALLOV PRASAD SINGH | 5,939 | 8.34% | 5 | 64.6% |
| 19671966 boundaries | INCS. S. PRASAD | PSPR. S. P. SINGH | 1,164 | 1.88% | 5 | 60.9% |
| 19621961 boundaries | SWASHYAM SUNDER PRASAD | INCSADRUL HAQUE | 5,898 | 15.38% | 5 | 44.2% |
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.
Frequently asked
Straight answers to the questions this page exists to answer.
Who won the ISLAMPUR assembly constituency in 2025?
Ruhail Ranjan (JD(U)) won ISLAMPUR in 2025, by a margin of 32,239 votes.
Which party has won ISLAMPUR the most times?
JD(U), with 5 of the 16 wins recorded since 1962.
How many times has ISLAMPUR gone to the polls?
16 times, from 1962 to 2025.
Who has won ISLAMPUR the most times?
RAMSWAROOP PRASAD, with 3 wins between 2000 and 2005.







