Sonpur Assembly constituency
Assembly constituency in Bihar, India
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Sonpur Assembly constituency, often spelt Sonepur, is in Saran district in the Indian state of Bihar.[1]
| Sonpur | |
|---|---|
| Constituency No. 122 for the Bihar Legislative Assembly | |
| Constituency details | |
| Country | India |
| Region | East India |
| State | Bihar |
| District | Saran |
| Established | 1951 |
| Total electors | 290,014 |
| Member of Legislative Assembly | |
| 18th Bihar Legislative Assembly | |
| Incumbent Vinay Kumar Singh | |
| Party | BJP |
| Alliance | NDA |
| Elected year | 2025 |

Ram Sundar Das, sitting MLA from Sonpur 1977–1980, served as Bihar's Chief Minister briefly in 1979.
Overview
As per Delimitation of Parliamentary and Assembly constituencies Order, 2008, No. 122 Sonpur Assembly constituency is composed of the following: Sonpur and Dighwara C.D. blocks.[2][3][4]
Sonpur Assembly constituency is part of No. 20 Saran (Lok Sabha constituency).[2] It was earlier part of Chapra (Lok Sabha constituency).
Members of Vidhan Sabha
| Year | Member | Party | |
|---|---|---|---|
| 1952 | Jagadish Sharma | Indian National Congress | |
| 1957 | Ram Binod Singh | Independent | |
| 1962 | Sheo Bachan Singh | Communist Party of India | |
| 1967 | Ram Jaipal Singh Yadav | Indian National Congress | |
| 1969 | |||
| 1972 | |||
| 1977 | Ram Sunder Das | Janata Party | |
| 1980 | Lalu Prasad Yadav | Janata Party | |
| 1985 | Lok Dal | ||
| 1990 | Raj Kumar Roy | Janata Dal | |
| 1995 | |||
| 2000 | Vinay Kumar Singh | Bharatiya Janata Party | |
| 2005 | Ramanuj Prasad Yadav | Rashtriya Janata Dal | |
| 2005 | |||
| 2010 | Vinay Kumar Singh | Bharatiya Janata Party | |
| 2015 | Ramanuj Prasad Yadav | Rashtriya Janata Dal | |
| 2020 | |||
| 2025 | Vinay Kumar Singh | Bharatiya Janata Party | |
Election results
2025
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| BJP | Vinay Kumar Singh | 90,842 | 45.59 | +6.41 | |
| RJD | Ramanuj Prasad Yadav | 86,075 | 43.2 | +0.09 | |
| JSP | Chandan Lal Mehta | 11,977 | 6.01 | ||
| Independent | Ramesh Kumar | 3,156 | 1.58 | −1.68 | |
| NOTA | None of the above | 2,606 | 1.31 | +0.4 | |
| Majority | 4,767 | 2.39 | −1.54 | ||
| Turnout | 199,240 | 68.7 | +9.74 | ||
| BJP gain from RJD | Swing | ||||
2020
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| RJD | Ramanuj Prasad Yadav | 73,247 | 43.11 | −11.76 | |
| BJP | Vinay Kumar Singh | 66,561 | 39.18 | +7.51 | |
| Independent | Chandan Lal | 8,667 | 5.1 | ||
| Independent | Ramesh Kumar | 5,541 | 3.26 | ||
| Independent | Suman Kumar | 3,055 | 1.8 | ||
| Independent | Hem Narayan Singh | 3,044 | 1.79 | ||
| Independent | Pinki Kumari Prasad | 1,942 | 1.14 | ||
| NCP | Dharamveer Kumar | 1,603 | 0.94 | ||
| NOTA | None of the above | 1,546 | 0.91 | −1.82 | |
| Majority | 6,686 | 3.93 | −19.27 | ||
| Turnout | 169,896 | 58.96 | +0.4 | ||
| RJD hold | Swing | ||||
2015
- Ramanuj Prasad Yadav (RJD): 86,082 votes
- Vinay Kumar Singh (BJP): 49,686 votes
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| RJD | Dr. Ramanuj Prasad | 86,082 | 54.87 | ||
| BJP | Vinay Kumar Singh | 49,686 | 31.67 | ||
| Independent | Binod Kumar Singh | 3,606 | 2.3 | ||
| Sarvajan Kalyan Loktantrik Party | Pradeep Kumar Sahni | 3,265 | 2.08 | ||
| Independent | Sudhir Kumar Singh Alias Bhola Singh | 2,312 | 1.47 | ||
| Independent | Ashok Singh | 2,172 | 1.38 | ||
| NOTA | None of the above | 4,290 | 2.73 | ||
| Majority | 36,396 | 23.2 | |||
| Turnout | 156,884 | 58.56 | |||
1980
- Lalu Prasad Yadav (Janata-Secular): 45,041 votes[8]
- Jawahar Prasad Singh (Indira Congress): 35,874 votes
- Ram Sunder Das (Janata Party): 10,396 votes
1977
- Ram Sunder Das (JNP): 40,747 votes[9]
- Rameshwar Prasad Rai (IND): 15,411 votes