SIWAN
Assembly seat no. 105 in Bihar · Vidhan Sabha seat contested 16 times since 1962.
Bihar also has a Lok Sabha constituency called SIWAN. It is a different territory with a different electorate — see its 16 results.
Winner, Nov 2005
BYASDEO PRASAD
BJP
Elections held
16
1962–2025
Most successful party
BJP
won 5 of 16
Margin, Nov 2005
3,169
3.18% of valid votes
Result, Nov 2005
Runner-up
RJDAWADH BIHARI CHAUDHARY
- Votes
- 39,587
- Vote share
- 39.76%
- Behind by
- 3,169
Electors
2,05,998
Total votes polled
99,569
Valid votes
99,569
NOTA votes
—
Turnout
48.3%
Full result, Nov 2005
10 candidates · 99,569 valid votes
BYASDEO PRASADBJPwon
42,756
42.9%
AWADH BIHARI CHAUDHARYRJD
39,587
39.8%
WASI AHMADLJP
6,696
6.7%
BABU LAL RAMIND
2,583
2.6%
KAMLESH PRASADBSP
2,406
2.4%
RAMAVTAR JADAVCPI(ML)(L)
1,579
1.6%
GAUTAM GIRIIND
1,269
1.3%
MUNI MANGAL DEO SHASTRIBMP
1,069
1.1%
IZHARUL HAQUESP
992
1.0%
NAR SINGH CHAIHANGGP
632
0.6%
Past results
Most recent 5 of 16 elections
| Year | Winner | Party | Votes | Vote share | Runner-up | Margin |
|---|---|---|---|---|---|---|
| 2025 | Mangal Pandey | BJP | 92,379 | 48.47% | Awadh Bihari Choudhary | 9,370 |
| 2020 | AWADH BIHARI CHAUDHARY | RJD | 76,785 | 45.30% | OM PRAKASH YADAV | 1,973 |
| 2015 | VYAS DEO PRASAD | BJP | 55,156 | 35.02% | BABLU PRASAD | 3,534 |
| 2010 | VYASDEO PRASAD | BJP | 51,637 | 44.20% | AWADHVIHARI CHAUDHRY | 12,541 |
| Nov 2005 | BYASDEO PRASAD | BJP | 42,756 | 42.94% | AWADH BIHARI CHAUDHARY | 3,169 |
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 SIWAN assembly constituency in 2025?
Mangal Pandey (BJP) won SIWAN in 2025, by a margin of 9,370 votes.
Which party has won SIWAN the most times?
BJP, with 5 of the 16 wins recorded since 1962.
How many times has SIWAN gone to the polls?
16 times, from 1962 to 2025.
Who has won SIWAN the most times?
AWADH BIHARI CHAUDHARY, with 4 wins between 1995 and 2020.
