| Election Name: | Bihar Legislative Assembly election |
| Type: | Legislative |
| Ongoing: | yes |
| Election Date: | By October–November 2025 |
| Country: | India |
| Seats For Election: | All 243 seats in the Bihar Legislative Assembly |
| Majority Seats: | 122 |
| Previous Year: | 2020 |
| Previous Election: | 2020 Bihar Legislative Assembly election |
| Next Year: | 2030 |
| Next Election: | 2030 Bihar Legislative Assembly election |
| Outgoing Members: | 17th Bihar Assembly#Members of Legislative Assembly |
| Opinion Polls: | Next Bihar Legislative Assembly election#Opinion polls |
| Leader2: | Tejashwi Yadav |
| Party2: | Rashtriya Janata Dal |
| Alliance2: | Mahagathbandhan (Bihar) |
| Leader Since2: | 2017 |
| Leaders Seat2: | Raghopur |
| Last Election2: | 23.11%, 75 seats |
| Seats Before2: | 74 |
| Seats Needed2: | 49 |
| Leader1: | Dilip Jaiswal |
| Party1: | Bharatiya Janata Party |
| Alliance1: | National Democratic Alliance |
| Leader Since1: | 2024 |
| Leaders Seat1: | MLC |
| Last Election1: | 19.46%, 74 seats |
| Seats Before1: | 85 |
| Seats Needed1: | 38 |
| Leader3: | Nitish Kumar |
| Party3: | JD(U) |
| Alliance3: | National Democratic Alliance (India) |
| Leader Since3: | 2005 |
| Leaders Seat3: | MLC |
| Last Election3: | 15.39%, 43 seats |
| Seats Before3: | 45 |
| Seats Needed3: | 78 |
| Leader4: | Akhilesh Prasad Singh |
| Party4: | Indian National Congress |
| Alliance4: | Mahagathbandhan (Bihar) |
| Leader Since4: | 2023 |
| Leaders Seat4: | Kadwa |
| Last Election4: | 9.48%, 19 seats |
| Seats Before4: | 19 |
| Seats Needed4: | 103 |
| Leader5: | Rajaram Singh Kushwaha |
| Party5: | CPI(ML)L |
| Alliance5: | Mahagathbandhan (Bihar) |
| Leader Since5: | 2020 |
| Last Election5: | 3.16%, 12 seats |
| Seats Before5: | 12 |
| Seats Needed5: | 110 |
| Leader6: | Akhtarul Iman |
| Party6: | All India Majlis-e-Ittehadul Muslimeen |
| Leader Since6: | 2015 |
| Leaders Seat6: | Amour |
| Last Election6: | 1.24%, 5 seats |
| Seats Before6: | 1 |
| Seats Needed6: | 117 |
| Leader7: | Prashant Kishore |
| Party7: | Jan Suraaj Party |
| Seats Before7: | new party |
| Map Size: | 300px |
| Chief Minister | |
| Before Election: | Nitish Kumar |
| Before Party: | JD(U) |
| Posttitle: | Chief Minister after election |
The previous assembly elections were held in OctoberNovember 2020. After the election, National Democratic Alliance formed the state government, with Nitish Kumar becoming Chief Minister. Later, In August 2022 Nitish Kumar led JD(U) snap ties with NDA and formed government with RJD led Mahagathbandhan. Later, In January 2024 Nitish Kumar led JD(U) snap ties with RJD led Mahagathbandhan and again formed government with BJP led NDA. Prashant Kishor, a political strategist, claimed his prediction scared them, leading to their exit from Mahagathbandhan. His next forecast is that JD(U) won't secure over 20 seats in the state election. He declared retirement if Janata Dal (United) exceeds 20 seats.[1]
| Poll Event | Schedule | |
|---|---|---|
| Notification Date | TBD | |
| Last Date for filing nomination | TBD | |
| Scrutiny of nomination | TBD | |
| Last Date for Withdrawal of nomination | TBD | |
| Date of Poll | TBD | |
| Date of Counting of Votes | TBD |
| Party | Flag | Symbol | Photo | Leader | Seats contested | |
|---|---|---|---|---|---|---|
| Janata Dal (United) | Nitish Kumar | TBD | ||||
| Bharatiya Janata Party | Dilip Kumar Jaiswal | TBD | ||||
| Lok Janshakti Party (Ram Vilas) | Chirag Paswan | TBD | ||||
| Hindustani Awam Morcha | Jitan Ram Manjhi | TBD | ||||
| Rashtriya Lok Morcha | Upendra Kushwaha | TBD | ||||
| Party | Flag | Symbol | Photo | Leader | Seats contested | ||
|---|---|---|---|---|---|---|---|
| Rashtriya Janata Dal | Tejashwi Yadav | TBD | |||||
| Indian National Congress | Akhilesh Prasad Singh | TBD | |||||
| Colspan=1 | Vikassheel Insaan Party | Mukesh Sahani | TBD | ||||
| Communist Party of India (Marxist–Leninist) Liberation | Mahbub Alam | TBD | |||||
| Communist Party of India | Ram Naresh Pandey | TBD | |||||
| Communist Party of India (Marxist) | Ajay Kumar | TBD | |||||
| Party | Flag | Symbol | Photo | Leader | Seats contested | |
|---|---|---|---|---|---|---|
| Jan Suraaj Party | Prashant Kishor | 243 | ||||
| Aam Aadmi Party[2] | Sushil Kumar | TBD | ||||
| Aap Sabki Aawaz | RCP Singh | 140[3] | ||||
| All India Majlis-e-Ittehadul Muslimeen | Akhtarul Iman | TBD | ||||
| The Plurals Party | Pushpam Priya Choudhary | TBD | ||||
| Rashtriya Lok Janshakti Party | Pashupati Kumar Paras | TBD | ||||