Seat data is not available for this selection.
| Sno. | Constituency | Type | State | Winning Candidate | 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 | 181-Chikballapur | GEN | Bihar | Satyadeo Singh | Janta Party | 763005 | 394398 | 51.70% | 8781 | 2.20% | 1980 |
| 47 | 551-Bagaha | SC | Bihar | Bhola Raut | Indian National Congress (I) | 677987 | 286833 | 42.30% | 123398 | 43.00% | 1980 |
| 48 | 553-Barh | GEN | Bihar | Dharmvir Singh | Indian National Congress (U) | 780459 | 484029 | 62.00% | 31606 | 6.50% | 1980 |
| 49 | 554-Bettiah | GEN | Bihar | Kedar Pandey | Indian National Congress (I) | 707334 | 320806 | 45.40% | 104725 | 32.60% | 1980 |
| 50 | 555-Bikramganj | GEN | Bihar | Tapeshwar Singh | Indian National Congress (I) | 787636 | 441458 | 56.10% | 21386 | 4.80% | 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 |