The 1980 Lok Sabha (Parliament) election in Bihar was held to elect Members of Parliament (MPs) from 54 parliamentary constituencies in the state. Indian National Congress (I) emerged as the leading party, winning 30 seats. Janta Party came second with 8 seats.
A total of 39,713,395 electors were registered to vote across the state. Of these, 20,600,067 votes were polled, resulting in an overall voter turnout of 51.9%. The average victory margin across all constituencies was 46,694 votes, with the closest contest decided by just 1,255 votes and the largest margin reaching 174,829 votes.
A total of 7 political parties won at least one seat in this election. India's Lok Sabha elections use the First-Past-The-Post (FPTP) system, where the candidate with the most votes in each constituency wins the seat. The party or coalition winning a majority of Lok Sabha seats forms the central government and appoints the Prime Minister.
Seat data is not available for this selection.
Seat breakdown: Indian National Congress (I) (30), Janta Party (8), Janta Party (SECULAR) (5), Indian National Congress (U) (4), Communist Party Of India (4) and 2 other parties.
Click on any constituency name to view the full candidate-wise breakdown with individual vote counts, vote share percentages, and party affiliations.
| Sno. | Constituency | Type | State | Winner | Party | Electors | Votes | Turnout | Margin | Margin% | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 45-Sheohar | GEN | Bihar | Ram Dulari Singh | Indian National Congress (I) | 790288 | 419552 | 53.10% | 51392 | 12.20% | 1980 |
| 2 | 46-Sitamarhi | GEN | Bihar | Baliram Bhagat | Indian National Congress (U) | 814886 | 471407 | 57.90% | 32249 | 6.80% | 1980 |
| 3 | 47-Madhubani | GEN | Bihar | Shafiqullah Ansari | Indian National Congress (I) | 774006 | 477545 | 61.70% | 3223 | 0.70% | 1980 |
| 4 | 48-Jhanjharpur | GEN | Bihar | Dhanik Lal Mandal | Janta Party (SECULAR) | 700394 | 459432 | 65.60% | 45483 | 9.90% | 1980 |
| 5 | 50-Araria | SC | Bihar | Dumar Lal Baitha | Indian National Congress (I) | 702757 | 392444 | 55.80% | 62824 | 16.00% | 1980 |
| 6 | 51-Kishanganj | GEN | Bihar | Zamilur Rahman | Indian National Congress (I) | 702809 | 320666 | 45.60% | 99049 | 30.90% | 1980 |
| 7 | 52-Katihar | GEN | Bihar | Shah Tarique Anwar | Indian National Congress (I) | 612145 | 318884 | 52.10% | 38156 | 12.00% | 1980 |
| 8 | 53-Purnia | GEN | Bihar | Madhuri Singh | Indian National Congress (I) | 686099 | 345746 | 50.40% | 61956 | 17.90% | 1980 |
| 9 | 54-Madhepura | GEN | Bihar | Rajendra Pd. Yadav | Indian National Congress (U) | 746552 | 446809 | 59.90% | 57498 | 12.90% | 1980 |
| 10 | 55-Darbhanga | GEN | Bihar | Hari Nath Mishra | Indian National Congress (I) | 732217 | 473415 | 64.70% | 58201 | 12.30% | 1980 |
| 11 | 56-Muzaffarpur | GEN | Bihar | George Farnandes | Janta Party (SECULAR) | 761283 | 458384 | 60.20% | 23109 | 5.00% | 1980 |
| 12 | 57-Vaishali | GEN | Bihar | Kishroi Sinha | Janta Party | 746901 | 370480 | 49.60% | 3331 | 0.90% | 1980 |
| 13 | 58-Gopalganj | GEN | Bihar | Nagina Rai | Indian National Congress (I) | 734157 | 341415 | 46.50% | 63820 | 18.70% | 1980 |
| 14 | 59-Siwan | GEN | Bihar | M. Yusuf | Indian National Congress (I) | 719852 | 337998 | 47.00% | 15599 | 4.60% | 1980 |
| 15 | 60-Maharajganj | GEN | Bihar | Krishna Pratap Singh | Indian National Congress (I) | 764467 | 329817 | 43.10% | 30932 | 9.40% | 1980 |
| 16 | 62-Hajipur | SC | Bihar | Ram Vilas Paswan | Janta Party (SECULAR) | 761330 | 465147 | 61.10% | 145839 | 31.40% | 1980 |
| 17 | 64-Samastipur | GEN | Bihar | Ajit Kumar Mehta | Janta Party (SECULAR) | 849825 | 475011 | 55.90% | 86524 | 18.20% | 1980 |
| 18 | 65-Begusarai | GEN | Bihar | Krishna Shahi | Indian National Congress (I) | 772911 | 459452 | 59.40% | 172723 | 37.60% | 1980 |
| 19 | 66-Khagaria | GEN | Bihar | Satish Pd. Singh | Indian National Congress (I) | 713675 | 422876 | 59.30% | 53769 | 12.70% | 1980 |
| 20 | 67-Bhagalpur | GEN | Bihar | Bhagwat Jha Azad | Indian National Congress (I) | 774045 | 424379 | 54.80% | 76685 | 18.10% | 1980 |
| 21 | 68-Banka | GEN | Bihar | Chandra Shekhar Singh | Indian National Congress (I) | 690997 | 351663 | 50.90% | 76423 | 21.70% | 1980 |
| 22 | 69-Munger | GEN | Bihar | Devendra Prasad Yadav | Indian National Congress (U) | 795163 | 471314 | 59.30% | 64133 | 13.60% | 1980 |
| 23 | 70-Nalanda | GEN | Bihar | Vijay Kumar Yadav | Communist Party Of India | 818349 | 525087 | 64.20% | 62601 | 11.90% | 1980 |
| 24 | 71-Patna Sahib | GEN | Bihar | Ramavatar Shastri | Communist Party Of India | 895002 | 425173 | 47.50% | 20413 | 4.80% | 1980 |
| 25 | 73-Arrah | GEN | Bihar | Chandradeo Prasad Verma | Janta Party (SECULAR) | 829450 | 417138 | 50.30% | 8949 | 2.10% | 1980 |
| 26 | 74-Buxar | GEN | Bihar | K. K. Tiwari | Indian National Congress (I) | 792731 | 360718 | 45.50% | 31724 | 8.80% | 1980 |
| 27 | 75-Sasaram | SC | Bihar | Jagjiwan Ram | Janta Party | 751039 | 391165 | 52.10% | 51170 | 13.10% | 1980 |
| 28 | 77-Jahanabad | GEN | Bihar | Mahendara Prasad | Indian National Congress (I) | 863650 | 571648 | 66.20% | 28142 | 4.90% | 1980 |
| 29 | 78-Aurangabad | GEN | Bihar | Satyendra Narain Singh | Janta Party | 758576 | 456992 | 60.20% | 174829 | 38.30% | 1980 |
| 30 | 79-Gaya | SC | Bihar | Ramswaroop Ram | Indian National Congress (I) | 709388 | 390505 | 55.10% | 33927 | 8.70% | 1980 |
| 31 | 80-Nawada | SC | Bihar | Kunwar Ram | Indian National Congress (I) | 850367 | 442515 | 52.00% | 56187 | 12.70% | 1980 |
| 32 | 141-Rajmahal | ST | Bihar | Seth Hemrem | Indian National Congress (I) | 629351 | 227326 | 36.10% | 40190 | 17.70% | 1980 |
| 33 | 142-Dumka | ST | Bihar | Shibu Siren | Independent | 645270 | 310392 | 48.10% | 3513 | 1.10% | 1980 |
| 34 | 143-Godda | GEN | Bihar | Samin Udin | Indian National Congress (I) | 711384 | 356239 | 50.10% | 30342 | 8.50% | 1980 |
| 35 | 144-Chatra | GEN | Bihar | Ranjit Singh | Indian National Congress (I) | 658959 | 275401 | 41.80% | 45586 | 16.60% | 1980 |
| 36 | 145-Kodarma | GEN | Bihar | Reet Lal Pd. Verma | Janta Party | 679406 | 274331 | 40.40% | 22366 | 8.20% | 1980 |
| 37 | 146-Giridih | GEN | Bihar | Bindeshwari Dubey | Indian National Congress (I) | 683106 | 305695 | 44.80% | 26029 | 8.50% | 1980 |
| 38 | 147-Dhanbad | GEN | Bihar | A. K. Roy | Independent | 829241 | 405558 | 48.90% | 15306 | 3.80% | 1980 |
| 39 | 148-Ranchi | GEN | Bihar | Shiva Prasad Sahu | Indian National Congress (I) | 694669 | 282539 | 40.70% | 38126 | 13.50% | 1980 |
| 40 | 149-Jamshedpur | GEN | Bihar | Rudra Pratap Sarangi | Janta Party | 664802 | 321959 | 48.40% | 10457 | 3.20% | 1980 |
| 41 | 150-Singhbhum | ST | Bihar | Bagun Sumbrui | Janta Party | 574233 | 171427 | 29.90% | 16808 | 9.80% | 1980 |
| 42 | 151-Khunti | ST | Bihar | Nirel Enem Horo | Jharkhand Party | 593802 | 211891 | 35.70% | 19879 | 9.40% | 1980 |
| 43 | 152-Lohardaga | ST | Bihar | Kartik Oraon | Indian National Congress (I) | 638943 | 260429 | 40.80% | 69346 | 26.60% | 1980 |
| 44 | 153-Palamau | SC | Bihar | Kamla Kumari | Indian National Congress (I) | 673887 | 274728 | 40.80% | 45340 | 16.50% | 1980 |
| 45 | 154-Hazaribagh | GEN | Bihar | Kunwar Basant Narayan Singh | Janta Party | 715407 | 281511 | 39.40% | 29364 | 10.40% | 1980 |
| 46 | 551-Bagaha | SC | Bihar | Bhola Raut | Indian National Congress (I) | 677987 | 286833 | 42.30% | 123398 | 43.00% | 1980 |
| 47 | 553-Barh | GEN | Bihar | Dharmvir Singh | Indian National Congress (U) | 780459 | 484029 | 62.00% | 31606 | 6.50% | 1980 |
| 48 | 554-Bettiah | GEN | Bihar | Kedar Pandey | Indian National Congress (I) | 707334 | 320806 | 45.40% | 104725 | 32.60% | 1980 |
| 49 | 555-Bikramganj | GEN | Bihar | Tapeshwar Singh | Indian National Congress (I) | 787636 | 441458 | 56.10% | 21386 | 4.80% | 1980 |
| 50 | 556-Chapra | GEN | Bihar | Satyadeo Singh | Janta Party | 763005 | 394398 | 51.70% | 8781 | 2.20% | 1980 |
| 51 | 557-Motihari | GEN | Bihar | Kamla Mishra Madhukar | Communist Party Of India | 726964 | 341342 | 47.00% | 5506 | 1.60% | 1980 |
| 52 | 558-Rosera | SC | Bihar | Baleshwar Ram | Indian National Congress (I) | 743904 | 468253 | 63.00% | 19395 | 4.10% | 1980 |
| 53 | 559-Saharsa | GEN | Bihar | Kamal Nath Jha | Indian National Congress (I) | 803843 | 499103 | 62.10% | 1255 | 0.30% | 1980 |
| 54 | 734-Balia | GEN | Bihar | Surya Narayan Singh | Communist Party Of India | 714492 | 389642 | 54.50% | 1900 | 0.50% | 1980 |
Data-driven analysis of the 1980 Bihar Lok Sabha election results, covering competitiveness, candidate performance, and voter behaviour.
The victory margin is the difference in votes between the winning candidate and the runner-up. A constituency with a margin under 5,000 votes is considered closely fought. The average margin in Bihar 1980 was 46,694 votes.
The 10 parliamentary constituencies decided by the narrowest margins.
| Constituency | Winner | Party | Margin |
|---|
Candidates receiving less than one-sixth (16.67%) of valid votes forfeit their security deposit. A high forfeiture rate indicates a party fielded candidates in constituencies with little voter support.
NOTA (None of the Above) allows voters to reject all candidates. When NOTA votes exceed the victory margin, it signals significant voter dissatisfaction.
| Constituency | NOTA Votes | Win Margin | NOTA > Margin? |
|---|
The Lok Sabha (House of the People) is the lower house of India's Parliament. Members of Parliament (MPs) are directly elected by voters in their respective parliamentary constituencies through universal adult suffrage.
Bihar is divided into 54 parliamentary constituencies. The constituencies are categorized as: GEN (41 seats), SC (8 seats), ST (5 seats). SC and ST reserved constituencies ensure representation for historically marginalized communities.
India follows the First-Past-The-Post (FPTP) electoral system. The candidate who receives the highest number of votes wins the seat. Elections are conducted by the Election Commission of India (ECI) using Electronic Voting Machines (EVMs) and Voter Verifiable Paper Audit Trail (VVPAT).