
In Hilsa, the JD(U) candidate won by just 12 votes, according to the Election Commission website, a result contested by the RJD.
In the 2020 state polls, the National Democratic Alliance (NDA) won 125 seats in the 243-seat Assembly and emerged victorious after 15 hours of counting of votes. The RJD emerged as the single-largest party after winning 76 seats and its vote share of 23.03%, the highest for any single party in the Bihar Assembly election.
The BJP bagged 74 seats with a vote share of 19.46% and the JD(U) won 43 seats with 15.40% vote share.
The Congress managed to win only 19 of the 70 seats it had contested. The Left parties won 16 out of the 29 seats – the CPI(ML), the CPI and the CPI(M) had contested.
AIMIM clinched five seats and its alliance partner in Bihar, Mayawati’s BSP, won one.
Chirag Paswan’s Lok Janshakti Party contested alone on nearly 150 seats and registered a victory on just one seat.
| S.No. | Constituency name | Winner | Party | 1st runner up | Party | Margin |
| 1 | Kurhani | Anil Kumar Sahni | RJD | Kedar Prasad Gupta | BJP | 712 |
| 2 | Bhorey | Sunil Kumar | JD(U) | Jitendra Paswan | CPI-ML | 462 |
| 3 | Bachhwara | Surendra Mehata | BJP | Abdhesh Kumar Rai | CPI | 484 |
| 4 | Matihani | Raj Kumar Singh | LJP | Narendra Kumar Singh | JD(U) | 333 |
| 5 | Bakhri | Suryakant Paswan | CPI | Ramshankar Paswan | BJP | 777 |
| 6 | Parbatta | Doctor Sanjeev Kumar | JD(U) | Digambar Prasad Tiwary | RJD | 951 |
| 7 | Barbigha | Sudarshan Kumar | JD(U) | Gajanand Shahi | Congress | 113 |
| 8 | Hilsa | Krishnamurari Sharan | JD(U) | Atri Muni | RJD | 12 |
| 9 | Ramgarh | Sudhakar Singh | RJD | Ambika Singh | BSP | 189 |
| 10 | Dehri | Phate Bahadur Singh | RJD | Satyanarayan Singh | BJP | 464 |
| 11 | Chakai | Sumit Kumar Singh | Independent | Savitri Devi | RJD | 581 |