2024 Indian general election in Bihar|
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| Opinion polls | 
| Turnout | 56.28% ( 1.05 pp) | 
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|  | First party | Second party | Third party |  
|  |  |  |  |  
| Leader | Samrat Chaudhary | Nitish Kumar | Chirag Paswan |  
| Party | BJP | JD(U) | LJP(RV) |  
| Alliance | NDA | NDA | NDA |  
| Leader since | 2023 | 2003 | 2021 |  
| Leader's seat | Did not contest | Did not contest | Hajipur (won) |  
| Last election | 23.58%, 17 seats | 21.81%, 16 seats | 7.86%, 0 seats |  
| Seats won | 12 | 12 | 5 |  
| Seat change | 5 | 4 |  |  
| Popular vote | 8,885,818 | 8,020,732 | 2,803,936 |  
| Percentage | 20.52% | 18.52% | 6.47% |  
| Swing | 3.53 pp | 3.74 pp | 1.39 pp |  
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|  | Fourth party | Fifth party | Sixth party |  
|  |  |  |  |  
| Leader | Tejashwi Yadav | Akhilesh Prasad Singh | Rajaram Singh and Sudama Prasad |  
| Party | RJD | INC | CPI(ML)L |  
| Alliance | INDIA | INDIA | INDIA |  
| Leader since | 2020 | 2022 | 2024 |  
| Leader's seat | Did not contest | Did not contest | Karakat (won) and Arrah (won) |  
| Last election | 15.38%, 0 seats | 7.70%, 1 seat | 1.36%, 0 seats |  
| Seats won | 4 | 3 | 2 |  
| Seat change | 4 | 2 | 2 |  
| Popular vote | 9,588,365 | 3,983,882 | 1,293,538 |  
| Percentage | 22.14% | 9.20% | 2.99% |  
| Swing | 6.46 pp | 1.35 pp | 1.63 pp |  |
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The 2024 Indian general election was held in Bihar in all 7 phases from 19 April to 1 June to elect 40 members of the 18th Lok Sabha, with the results declared on 4 June.
Bihar, along with Uttar Pradesh and West Bengal, were the only states where the 2024 Indian general election was held in all 7 phases.