The 1985 Bihar Vidhan Sabha (Legislative Assembly) election was held to elect members to 324 assembly constituencies across the state. Indian National Congress emerged as the single largest party, winning 196 seats (majority mark: 163). Lok Dal came second with 46 seats.
A total of 43,880,751 electors were registered to vote across the state. Of these, 24,692,328 votes were polled, resulting in an overall voter turnout of 56.27%. The average victory margin across all constituencies was 12,770 votes, with the closest contest decided by just 24 votes and the largest margin reaching 70,298 votes.
A total of 10 political parties won at least one seat in this election. Each constituency uses the First-Past-The-Post (FPTP) electoral system. The party or coalition winning a majority of assembly seats forms the state government and appoints the Chief Minister.
Seat breakdown: Indian National Congress (196), Lok Dal (46), Independent (29), Bharatiya Janata Party (16), Janta Party (13) and 5 other parties. Indian National Congress crossed the majority mark of 163 seats with a clear mandate.
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 | 2-Ramnagar-Bihar | GEN | Bihar | Arjun Vikram Sah | Indian National Congress | 122215 | 64141 | 52.50% | 3050 | 4.80% | 1985 |
| 2 | 4-Bagaha-Bihar | SC | Bihar | Triloki Harijan | Indian National Congress | 132046 | 53854 | 40.80% | 6662 | 12.40% | 1985 |
| 3 | 5-Lauriya-Bihar | GEN | Bihar | Vishwa Mohan Sharma | Indian National Congress | 116976 | 67647 | 57.80% | 21002 | 31.00% | 1985 |
| 4 | 6-Nautan-Bihar | GEN | Bihar | Kamla Pandey | Indian National Congress | 115190 | 50730 | 44.00% | 4864 | 9.60% | 1985 |
| 5 | 7-Chanpatia-Bihar | GEN | Bihar | Birbal Sharma | Communist Party Of India | 113353 | 55833 | 49.30% | 3169 | 5.70% | 1985 |
| 6 | 8-Bettiah-Bihar | GEN | Bihar | Gauri Shanker Pandey | Indian National Congress | 142668 | 66450 | 46.60% | 16475 | 24.80% | 1985 |
| 7 | 9-Sikta-Bihar | GEN | Bihar | Dharmesh Prasad Verma | Janta Party | 123300 | 76094 | 61.70% | 16522 | 21.70% | 1985 |
| 8 | 10-Raxaul-Bihar | GEN | Bihar | Sagir Ahmad | Indian National Congress | 122412 | 74881 | 61.20% | 5328 | 7.10% | 1985 |
| 9 | 11-Sugauli-Bihar | GEN | Bihar | Suresh Kumar Mishra | Indian National Congress | 129128 | 70969 | 55.00% | 4252 | 6.00% | 1985 |
| 10 | 13-Harsidhi (S.C)-Bihar | GEN | Bihar | Md. Hedaitullah Khan | Indian National Congress | 117660 | 68950 | 58.60% | 4141 | 6.00% | 1985 |
| 11 | 14-Govindganj-Bihar | GEN | Bihar | Yogendra Pandey | Independent | 136119 | 77429 | 56.90% | 5128 | 6.60% | 1985 |
| 12 | 15-Kesaria-Bihar | GEN | Bihar | Rai Hari Shankar Sharma | Indian National Congress | 134524 | 77723 | 57.80% | 6638 | 8.50% | 1985 |
| 13 | 16-Kalyanpur-Bihar | GEN | Bihar | Basistha Narain Singh | Lok Dal | 144555 | 81175 | 56.20% | 6747 | 8.30% | 1985 |
| 14 | 17-Pipra-Bihar | SC | Bihar | Nand Lal Chaudhary | Indian National Congress | 110472 | 55393 | 50.10% | 9374 | 16.90% | 1985 |
| 15 | 18-Madhuban-Bihar | GEN | Bihar | Sitaram Singh | Janta Party | 138301 | 72666 | 52.50% | 2573 | 3.50% | 1985 |
| 16 | 19-Motihari-Bihar | GEN | Bihar | Triveni Tiwari | Communist Party Of India | 155088 | 80313 | 51.80% | 19697 | 24.50% | 1985 |
| 17 | 21-Dhaka-Bihar | GEN | Bihar | Motiur Rahman | Indian National Congress | 152392 | 102451 | 67.20% | 22389 | 21.90% | 1985 |
| 18 | 22-Sheohar-Bihar | GEN | Bihar | Raghunath Jha | Janta Party | 149340 | 94722 | 63.40% | 22798 | 24.10% | 1985 |
| 19 | 24-Bathnaha-Bihar | GEN | Bihar | Ram Niwas | Indian National Congress | 154607 | 94327 | 61.00% | 17580 | 18.60% | 1985 |
| 20 | 26-Sursand-Bihar | GEN | Bihar | Ravindra Prasad Sahi | Independent | 140764 | 76543 | 54.40% | 2327 | 3.00% | 1985 |
| 21 | 28-Sitamarhi-Bihar | GEN | Bihar | Khalil Ansari | Indian National Congress | 161602 | 77697 | 48.10% | 4992 | 6.40% | 1985 |
| 22 | 29-Runnisaidpur-Bihar | GEN | Bihar | Nawal Kishore Shahi | Janta Party | 164277 | 90975 | 55.40% | 2649 | 2.90% | 1985 |
| 23 | 30-Belsand-Bihar | GEN | Bihar | Raghubansh Pd. Singh | Lok Dal | 126072 | 65149 | 51.70% | 1181 | 1.80% | 1985 |
| 24 | 31-Harlakhi-Bihar | GEN | Bihar | Mithilesh Kumar Pandey | Indian National Congress | 135063 | 79264 | 58.70% | 15166 | 19.10% | 1985 |
| 25 | 32-Benipatti-Bihar | GEN | Bihar | Yugeshwar Jha | Indian National Congress | 137591 | 81245 | 59.00% | 11336 | 14.00% | 1985 |
| 26 | 33-Khajauli-Bihar | SC | Bihar | Bilat Paswan Vihangam | Indian National Congress | 141505 | 66060 | 46.70% | 13099 | 19.80% | 1985 |
| 27 | 34-Babubarhi-Bihar | GEN | Bihar | Guna Nand Jha | Indian National Congress | 128592 | 69711 | 54.20% | 1678 | 2.40% | 1985 |
| 28 | 35-Bisfi-Bihar | GEN | Bihar | Sakeel Ahmad | Indian National Congress | 150195 | 89132 | 59.30% | 23314 | 26.20% | 1985 |
| 29 | 36-Madhubani-Bihar | GEN | Bihar | Padma Chaubey | Indian National Congress | 155130 | 68794 | 44.30% | 5791 | 8.40% | 1985 |
| 30 | 38-Jhanjharpur-Bihar | GEN | Bihar | Jagannath Mishra | Indian National Congress | 127508 | 78984 | 61.90% | 55928 | 70.80% | 1985 |
| 31 | 39-Phulparas-Bihar | GEN | Bihar | Hemlata Yadav | Indian National Congress | 134376 | 65158 | 48.50% | 5384 | 8.30% | 1985 |
| 32 | 40-Laukaha-Bihar | GEN | Bihar | Abdul Hai Payami | Indian National Congress | 125528 | 70848 | 56.40% | 7695 | 10.90% | 1985 |
| 33 | 43-Supaul-Bihar | GEN | Bihar | Pramod Kumar Singh | Indian National Congress | 155774 | 108238 | 69.50% | 11800 | 10.90% | 1985 |
| 34 | 44-Triveniganj-Bihar | GEN | Bihar | Anup Lal Yadav | Lok Dal | 128560 | 102304 | 79.60% | 26410 | 25.80% | 1985 |
| 35 | 45-Chhatapur-Bihar | SC | Bihar | Kumbh Nr. Sardar | Indian National Congress | 125924 | 82236 | 65.30% | 7453 | 9.10% | 1985 |
| 36 | 46-Narpatganj-Bihar | GEN | Bihar | Indra Nand Yadav | Indian National Congress | 141621 | 72524 | 51.20% | 8731 | 12.00% | 1985 |
| 37 | 47-Raniganj-Bihar | SC | Bihar | Yamuna Pd. Ram | Indian National Congress | 137406 | 71110 | 51.80% | 45998 | 64.70% | 1985 |
| 38 | 48-Forbesganj-Bihar | GEN | Bihar | Saryu Mishra | Indian National Congress | 136974 | 77372 | 56.50% | 13441 | 17.40% | 1985 |
| 39 | 49-Araria-Bihar | GEN | Bihar | Halimuddin Ahmed | Indian National Congress | 122486 | 75583 | 61.70% | 1099 | 1.50% | 1985 |
| 40 | 50-Jokihat-Bihar | GEN | Bihar | Taslimuddin | Janta Party | 120709 | 78939 | 65.40% | 15763 | 20.00% | 1985 |
| 41 | 51-Sikti-Bihar | GEN | Bihar | Rameshwar Yadav | Indian National Congress | 150137 | 92427 | 61.60% | 7486 | 8.10% | 1985 |
| 42 | 52-Bahadurganj-Bihar | GEN | Bihar | Najmudin | Indian National Congress | 121606 | 59140 | 48.60% | 22062 | 37.30% | 1985 |
| 43 | 53-Thakurganj-Bihar | GEN | Bihar | Mohamad Husen Azad | Indian National Congress | 148872 | 81491 | 54.70% | 14213 | 17.40% | 1985 |
| 44 | 54-Kishanganj-Bihar | GEN | Bihar | Rajnandan Prasad | Lok Dal | 126141 | 80347 | 63.70% | 16761 | 20.90% | 1985 |
| 45 | 56-Amour-Bihar | GEN | Bihar | Jalil | Independent | 120235 | 79465 | 66.10% | 2178 | 2.70% | 1985 |
| 46 | 57-Baisi-Bihar | GEN | Bihar | Abdus Subhan | Lok Dal | 114360 | 66994 | 58.60% | 1590 | 2.40% | 1985 |
| 47 | 58-Kasba-Bihar | GEN | Bihar | Syed Gulam Hussain | Indian National Congress | 139671 | 83265 | 59.60% | 2365 | 2.80% | 1985 |
| 48 | 59-Banmankhi-Bihar | SC | Bihar | Rasik Lal Rishideo | Indian National Congress | 140570 | 68894 | 49.00% | 17891 | 26.00% | 1985 |
| 49 | 60-Rupauli-Bihar | GEN | Bihar | Dinesh Kumar Singh | Indian National Congress | 120719 | 77323 | 64.10% | 2311 | 3.00% | 1985 |
| 50 | 61-Dhamdaha-Bihar | GEN | Bihar | Amar Nath Tiwari | Indian National Congress | 135391 | 89044 | 65.80% | 28645 | 32.20% | 1985 |
| 51 | 62-Purnia-Bihar | GEN | Bihar | Ajit Chandras | Communist Party Of India (MARXIST) | 127404 | 73621 | 57.80% | 9074 | 12.30% | 1985 |
| 52 | 63-Katihar-Bihar | GEN | Bihar | Satya Narayan Prasad | Indian National Congress | 139064 | 69688 | 50.10% | 15370 | 22.10% | 1985 |
| 53 | 64-Kadwa-Bihar | GEN | Bihar | Usman Ghani | Indian National Congress | 112540 | 66386 | 59.00% | 26288 | 39.60% | 1985 |
| 54 | 66-Pranpur-Bihar | GEN | Bihar | Mangan Insan | Indian National Congress | 105468 | 60454 | 57.30% | 24841 | 41.10% | 1985 |
| 55 | 67-Manihari-Bihar | GEN | Bihar | Md. Mobarak Hussain | Indian National Congress | 99707 | 60648 | 60.80% | 24989 | 41.20% | 1985 |
| 56 | 68-Barari-Bihar | GEN | Bihar | Mansoor Alam | Lok Dal | 111217 | 66426 | 59.70% | 2904 | 4.40% | 1985 |
| 57 | 69-Korha-Bihar | SC | Bihar | Vishwa Nath Rishi | Indian National Congress | 112989 | 49341 | 43.70% | 13686 | 27.70% | 1985 |
| 58 | 70-Alamnagar-Bihar | GEN | Bihar | Birendra Ku. Singh | Lok Dal | 133962 | 83545 | 62.40% | 721 | 0.90% | 1985 |
| 59 | 72-Singheshwar-Bihar | GEN | Bihar | Ramendra Kumar Yadav Ravi | Lok Dal | 141086 | 89867 | 63.70% | 851 | 0.90% | 1985 |
| 60 | 73-Madhepura-Bihar | GEN | Bihar | Bholi Prasad Mandal | Indian National Congress | 151213 | 94053 | 62.20% | 395 | 0.40% | 1985 |
| 61 | 75-Saharsa-Bihar | GEN | Bihar | Satish Chandra Jha | Indian National Congress | 152301 | 87801 | 57.60% | 8182 | 9.30% | 1985 |
| 62 | 76-Simri Bakhtiarpur-Bihar | GEN | Bihar | Choudhary Mohammad Salahiddin | Indian National Congress | 154383 | 131702 | 85.30% | 1676 | 1.30% | 1985 |
| 63 | 77-Mahishi-Bihar | GEN | Bihar | Lahtan Choudhary | Indian National Congress | 155670 | 111786 | 71.80% | 55031 | 49.20% | 1985 |
| 64 | 82-Darbhanga Rural-Bihar | SC | Bihar | Ramchandra Paswan | Indian National Congress | 120315 | 60148 | 50.00% | 13226 | 22.00% | 1985 |
| 65 | 83-Darbhanga-Bihar | GEN | Bihar | Asfak Ansari | Indian National Congress | 136233 | 70372 | 51.70% | 8156 | 11.60% | 1985 |
| 66 | 84-Hayaghat-Bihar | GEN | Bihar | Umadhar Prasad Singh | Independent | 116075 | 64384 | 55.50% | 3022 | 4.70% | 1985 |
| 67 | 86-Keoti-Bihar | GEN | Bihar | Klim Ahmad | Indian National Congress | 150516 | 89478 | 59.40% | 8526 | 9.50% | 1985 |
| 68 | 87-Jale-Bihar | GEN | Bihar | Lokesh Nath Jha | Indian National Congress | 134914 | 87636 | 65.00% | 21387 | 24.40% | 1985 |
| 69 | 88-Gaighat-Bihar | GEN | Bihar | Virendra Kumar Singh | Indian National Congress | 138200 | 88487 | 64.00% | 3538 | 4.00% | 1985 |
| 70 | 89-Aurai-Bihar | GEN | Bihar | Ganesh Pd. Yadav | Janta Party | 134320 | 90045 | 67.00% | 13780 | 15.30% | 1985 |
| 71 | 90-Minapur-Bihar | GEN | Bihar | Hind Keshari Yadav | Lok Dal | 130548 | 90956 | 69.70% | 3820 | 4.20% | 1985 |
| 72 | 91-Bochaha-Bihar | SC | Bihar | Ramai Ram | Lok Dal | 131840 | 64596 | 49.00% | 2307 | 3.60% | 1985 |
| 73 | 92-Sakra-Bihar | SC | Bihar | Shivnandan Paswan | Lok Dal | 124368 | 71832 | 57.80% | 4332 | 6.00% | 1985 |
| 74 | 93-Kurhani-Bihar | GEN | Bihar | Sheonandan Rai | Indian National Congress | 132913 | 88988 | 67.00% | 9785 | 11.00% | 1985 |
| 75 | 94-Muzaffarpur-Bihar | GEN | Bihar | Raghunath Pandey | Indian National Congress | 152155 | 105009 | 69.00% | 70298 | 66.90% | 1985 |
| 76 | 95-Kanti-Bihar | GEN | Bihar | Nalini Ranjan Singh | Surajya Party | 123050 | 67385 | 54.80% | 209 | 0.30% | 1985 |
| 77 | 96-Baruraj-Bihar | GEN | Bihar | Shashi Kumar Rai | Lok Dal | 138861 | 102609 | 73.90% | 36084 | 35.20% | 1985 |
| 78 | 98-Sahebganj-Bihar | GEN | Bihar | Shiv Sharan Singh | Indian National Congress | 140705 | 90553 | 64.40% | 817 | 0.90% | 1985 |
| 79 | 99-Baikunthpur-Bihar | GEN | Bihar | Braj Kishore Narain Singh | Indian National Congress | 129853 | 88706 | 68.30% | 14332 | 16.20% | 1985 |
| 80 | 100-Barauli-Bihar | GEN | Bihar | Adnan Khan | Indian National Congress | 124668 | 60348 | 48.40% | 7387 | 12.20% | 1985 |
| 81 | 101-Gopalganj-Bihar | GEN | Bihar | Surendra Singh | Independent | 133225 | 77070 | 57.80% | 7797 | 10.10% | 1985 |
| 82 | 103-Bhorey-Bihar | SC | Bihar | Anil Kumar | Indian National Congress | 140749 | 76752 | 54.50% | 8498 | 11.10% | 1985 |
| 83 | 105-Siwan-Bihar | GEN | Bihar | Awadh Bihari Choudhary | Janta Party | 142499 | 84686 | 59.40% | 23032 | 27.20% | 1985 |
| 84 | 106-Ziradei-Bihar | GEN | Bihar | Tribhuan Singh | Indian National Congress | 126492 | 68192 | 53.90% | 8836 | 13.00% | 1985 |
| 85 | 107-Darauli-Bihar | GEN | Bihar | Shiv Shankar Yadav | Lok Dal | 130712 | 73892 | 56.50% | 3262 | 4.40% | 1985 |
| 86 | 108-Raghunathpur-Bihar | GEN | Bihar | Vijay Shanker Dubey | Indian National Congress | 147474 | 80457 | 54.60% | 5365 | 6.70% | 1985 |
| 87 | 111-Goriakothi-Bihar | GEN | Bihar | Indra Deo Prasad | Bharatiya Janata Party | 136030 | 77395 | 56.90% | 2405 | 3.10% | 1985 |
| 88 | 112-Maharajganj-Bihar | GEN | Bihar | Uma Shanker Singh | Janta Party | 145500 | 91541 | 62.90% | 10114 | 11.00% | 1985 |
| 89 | 114-Manjhi-Bihar | GEN | Bihar | Budhan Prasad Yadav | Independent | 134695 | 71619 | 53.20% | 6431 | 9.00% | 1985 |
| 90 | 115-Baniapur-Bihar | GEN | Bihar | Uma Pnadey | Indian National Congress | 125898 | 63832 | 50.70% | 2750 | 4.30% | 1985 |
| 91 | 116-Taraiya-Bihar | GEN | Bihar | Ram Das Rai | Bharatiya Janata Party | 117540 | 67127 | 57.10% | 873 | 1.30% | 1985 |
| 92 | 117-Marhaura-Bihar | GEN | Bihar | Bhishma Prasad Yadav | Indian National Congress | 131241 | 80497 | 61.30% | 30100 | 37.40% | 1985 |
| 93 | 118-Chapra-Bihar | GEN | Bihar | Janak Yadav | Independent | 154418 | 92038 | 59.60% | 10285 | 11.20% | 1985 |
| 94 | 119-Garkha-Bihar | SC | Bihar | Raghunandan Manjhi | Indian National Congress | 122040 | 59993 | 49.20% | 1146 | 1.90% | 1985 |
| 95 | 121-Parsa-Bihar | GEN | Bihar | Chandrika Rai | Indian National Congress | 131913 | 83324 | 63.20% | 11574 | 13.90% | 1985 |
| 96 | 122-Sonepur-Bihar | GEN | Bihar | Laloo Prasad | Lok Dal | 132867 | 76883 | 57.90% | 16219 | 21.10% | 1985 |
| 97 | 123-Hajipur-Bihar | GEN | Bihar | Moti Lal Sinha Kanan | Lok Dal | 146021 | 87660 | 60.00% | 18197 | 20.80% | 1985 |
| 98 | 124-Lalganj-Bihar | GEN | Bihar | Bharat Prasad Singh | Indian National Congress | 130259 | 89798 | 68.90% | 2234 | 2.50% | 1985 |
| 99 | 125-Vaishali-Bihar | GEN | Bihar | Brishin Patel | Lok Dal | 136155 | 84731 | 62.20% | 34293 | 40.50% | 1985 |
| 100 | 126-Mahua-Bihar | SC | Bihar | Dasai Chaudhary | Lok Dal | 131616 | 79222 | 60.20% | 15447 | 19.50% | 1985 |
| 101 | 128-Raghopur-Bihar | GEN | Bihar | Udai Narain Rai | Lok Dal | 143185 | 96096 | 67.10% | 4846 | 5.00% | 1985 |
| 102 | 128-Raghopur-Bihar | GEN | Bihar | Amarendra Mishra | Indian National Congress | 151143 | 99229 | 65.70% | 41152 | 41.50% | 1985 |
| 103 | 129-Mahnar-Bihar | GEN | Bihar | Munshi Lal Rai | Lok Dal | 145118 | 98648 | 68.00% | 3792 | 3.80% | 1985 |
| 104 | 130-Patepur-Bihar | SC | Bihar | Baleshwar Singh Paswan | Indian National Congress | 127810 | 69773 | 54.60% | 403 | 0.60% | 1985 |
| 105 | 132-Warisnagar-Bihar | SC | Bihar | Ramsevak Hazari | Independent | 124774 | 73848 | 59.20% | 3692 | 5.00% | 1985 |
| 106 | 133-Samastipur-Bihar | GEN | Bihar | Ashok Singh | Lok Dal | 154748 | 88700 | 57.30% | 8100 | 9.10% | 1985 |
| 107 | 136-Sarairanjan-Bihar | GEN | Bihar | Ramashray Ishwar | Indian National Congress | 150141 | 95901 | 63.90% | 9188 | 9.60% | 1985 |
| 108 | 137-Mohiuddinnagar-Bihar | GEN | Bihar | Anugrah Narain Singh | Indian National Congress | 158211 | 117293 | 74.10% | 50705 | 43.20% | 1985 |
| 109 | 138-Bibhutipur-Bihar | GEN | Bihar | Chandra Vali Thakur | Indian National Congress | 159769 | 112292 | 70.30% | 1587 | 1.40% | 1985 |
| 110 | 139-Rosera-Bihar | SC | Bihar | Bhola Mandar | Lok Dal | 137225 | 95024 | 69.20% | 10395 | 10.90% | 1985 |
| 111 | 140-Hasanpur-Bihar | GEN | Bihar | Rajendra Prasad Yadav | Indian National Congress | 124026 | 75510 | 60.90% | 6684 | 8.90% | 1985 |
| 112 | 141-Cheria Bariarpur-Bihar | GEN | Bihar | Harihar Mahto | Indian National Congress | 129986 | 72606 | 55.90% | 13045 | 18.00% | 1985 |
| 113 | 142-Bachhwara-Bihar | GEN | Bihar | Ayodhya Prasad Singh | Communist Party Of India | 136044 | 77281 | 56.80% | 4472 | 5.80% | 1985 |
| 114 | 144-Matihani-Bihar | GEN | Bihar | Pramod Kumar Sharma | Indian National Congress | 130905 | 70441 | 53.80% | 2727 | 3.90% | 1985 |
| 115 | 146-Begusarai-Bihar | GEN | Bihar | Bhola Singh | Indian National Congress | 133056 | 73133 | 55.00% | 9385 | 12.80% | 1985 |
| 116 | 147-Bakhri-Bihar | SC | Bihar | Ram Vinod Paswan | Communist Party Of India | 118038 | 60946 | 51.60% | 3148 | 5.20% | 1985 |
| 117 | 148-Alauli-Bihar | SC | Bihar | Pashupati Kumar | Lok Dal | 115553 | 58469 | 50.60% | 21699 | 37.10% | 1985 |
| 118 | 149-Khagaria-Bihar | GEN | Bihar | Satdeo Singh | Indian National Congress | 128725 | 76719 | 59.60% | 5397 | 7.00% | 1985 |
| 119 | 151-Parbatta-Bihar | GEN | Bihar | Ram Chandra Mishra | Indian National Congress | 139437 | 97094 | 69.60% | 7701 | 7.90% | 1985 |
| 120 | 152-Bihpur-Bihar | GEN | Bihar | Rajendra Prasad Sharma | Indian National Congress | 128162 | 72224 | 56.40% | 16688 | 23.10% | 1985 |
| 121 | 153-Gopalpur-Bihar | GEN | Bihar | Madan Prasad Singh | Indian National Congress | 140443 | 87511 | 62.30% | 15421 | 17.60% | 1985 |
| 122 | 154-Pirpainti-Bihar | GEN | Bihar | Dilip Kumar Sinha | Indian National Congress | 139836 | 87660 | 62.70% | 4089 | 4.70% | 1985 |
| 123 | 156-Bhagalpur-Bihar | GEN | Bihar | Sheo Chandra Jha | Indian National Congress | 138085 | 85669 | 62.00% | 38759 | 45.20% | 1985 |
| 124 | 157-Sultanganj-Bihar | SC | Bihar | Umesh Chandras Das | Indian National Congress | 149657 | 71436 | 47.70% | 9678 | 13.50% | 1985 |
| 125 | 158-Nathnagar-Bihar | GEN | Bihar | Chun Chun Pra Yadav | Lok Dal | 140866 | 86488 | 61.40% | 38709 | 44.80% | 1985 |
| 126 | 159-Amarpur-Bihar | GEN | Bihar | Neel Mohan Singh | Indian National Congress | 137299 | 93270 | 67.90% | 45716 | 49.00% | 1985 |
| 127 | 160-Dhauraiya-Bihar | SC | Bihar | Ramroop Harijan | Indian National Congress | 135199 | 78314 | 57.90% | 4213 | 5.40% | 1985 |
| 128 | 161-Banka-Bihar | GEN | Bihar | Chandra Shekhar Singh | Indian National Congress | 129952 | 88051 | 67.80% | 38317 | 43.50% | 1985 |
| 129 | 162-Katoria-Bihar | GEN | Bihar | Suresh Prasad Yadav | Indian Congress (SOCIALIST) | 135459 | 78734 | 58.10% | 5603 | 7.10% | 1985 |
| 130 | 163-Belhar-Bihar | GEN | Bihar | Siyaram Rai | Indian National Congress | 118970 | 75805 | 63.70% | 17398 | 23.00% | 1985 |
| 131 | 164-Tarapur-Bihar | GEN | Bihar | Shakuni Choudhary | Independent | 126304 | 91759 | 72.60% | 13557 | 14.80% | 1985 |
| 132 | 166-Jamalpur-Bihar | GEN | Bihar | Upendra Prasad Verma | Lok Dal | 146058 | 88058 | 60.30% | 7021 | 8.00% | 1985 |
| 133 | 167-Surajgarha-Bihar | GEN | Bihar | Alakh Sharma | Indian National Congress | 154536 | 102700 | 66.50% | 26161 | 25.50% | 1985 |
| 134 | 168-Lakhisarai-Bihar | GEN | Bihar | Krishna Chandra Prasad Singh | Janta Party | 170137 | 107693 | 63.30% | 10813 | 10.00% | 1985 |
| 135 | 169-Sheikhpura-Bihar | GEN | Bihar | Rajo Singh | Independent | 151569 | 100692 | 66.40% | 56112 | 55.70% | 1985 |
| 136 | 170-Barbigha-Bihar | SC | Bihar | Mahavir Chaudhary | Indian National Congress | 130669 | 82652 | 63.30% | 13604 | 16.50% | 1985 |
| 137 | 171-Asthawan-Bihar | GEN | Bihar | Raghunath Prasad | Independent | 140315 | 98868 | 70.50% | 5785 | 5.90% | 1985 |
| 138 | 172-Biharsharif-Bihar | GEN | Bihar | Shakil Uzzama | Indian National Congress | 196108 | 134204 | 68.40% | 377 | 0.30% | 1985 |
| 139 | 173-Rajgir-Bihar | SC | Bihar | Satyadeo Narain Arya | Bharatiya Janata Party | 142030 | 84568 | 59.50% | 9780 | 11.60% | 1985 |
| 140 | 174-Islampur-Bihar | GEN | Bihar | Ram Swaroop Prasad | Indian National Congress | 154111 | 116495 | 75.60% | 429 | 0.40% | 1985 |
| 141 | 175-Hilsa-Bihar | GEN | Bihar | Surendra Prasad Tarun | Indian National Congress | 150405 | 98870 | 65.70% | 7792 | 7.90% | 1985 |
| 142 | 176-Nalanda-Bihar | GEN | Bihar | Shyam Sunder Singh | Indian National Congress | 142511 | 82237 | 57.70% | 5066 | 6.20% | 1985 |
| 143 | 177-Harnaut-Bihar | GEN | Bihar | Nitis Kumar | Lok Dal | 124162 | 94046 | 75.70% | 21412 | 22.80% | 1985 |
| 144 | 179-Barh-Bihar | GEN | Bihar | Bhuneshwar Singh | Indian National Congress | 156020 | 111712 | 71.60% | 21356 | 19.10% | 1985 |
| 145 | 180-Bakhtiarpur-Bihar | GEN | Bihar | Ram Jaipal Singh Yadav | Indian National Congress | 152543 | 95757 | 62.80% | 19409 | 20.30% | 1985 |
| 146 | 185-Fatuha-Bihar | SC | Bihar | Punit Roy | Lok Dal | 141134 | 74742 | 53.00% | 3589 | 4.80% | 1985 |
| 147 | 187-Maner-Bihar | GEN | Bihar | Rajmati Devi | Indian National Congress | 139444 | 76631 | 55.00% | 20625 | 26.90% | 1985 |
| 148 | 188-Phulwari-Bihar | SC | Bihar | Sanjaeev Prasad Ton Tony | Indian National Congress | 153632 | 93978 | 61.20% | 44449 | 47.30% | 1985 |
| 149 | 189-Masaurhi-Bihar | GEN | Bihar | Punam Devi | Indian National Congress | 163960 | 90389 | 55.10% | 17066 | 18.90% | 1985 |
| 150 | 190-Paliganj-Bihar | GEN | Bihar | Ram Lakhan Singh Yadav | Indian National Congress | 157651 | 89196 | 56.60% | 32025 | 35.90% | 1985 |
| 151 | 191-Bikram-Bihar | GEN | Bihar | Ram Nath Yadav | Communist Party Of India | 133524 | 81237 | 60.80% | 6342 | 7.80% | 1985 |
| 152 | 192-Sandesh-Bihar | GEN | Bihar | Sonadhari | Lok Dal | 144209 | 89011 | 61.70% | 4278 | 4.80% | 1985 |
| 153 | 193-Barhara-Bihar | GEN | Bihar | Raghvendra Pratap Singh | Janta Party | 151770 | 93123 | 61.40% | 13055 | 14.00% | 1985 |
| 154 | 194-Arrah-Bihar | GEN | Bihar | S. M. Isha | Indian National Congress | 164271 | 77434 | 47.10% | 10595 | 13.70% | 1985 |
| 155 | 197-Jagdishpur-Bihar | GEN | Bihar | Hari Narayan Singh | Lok Dal | 141315 | 76795 | 54.30% | 2442 | 3.20% | 1985 |
| 156 | 198-Shahpur-Bihar | GEN | Bihar | Vindeshwari Dubey | Indian National Congress | 132905 | 73061 | 55.00% | 29680 | 40.60% | 1985 |
| 157 | 199-Brahampur-Bihar | GEN | Bihar | Rishikesh Tiwary | Indian National Congress | 171735 | 86959 | 50.60% | 1485 | 1.70% | 1985 |
| 158 | 200-Buxar-Bihar | GEN | Bihar | Sri Kant Pathak | Indian National Congress | 140119 | 67477 | 48.20% | 5810 | 8.60% | 1985 |
| 159 | 201-Dumraon-Bihar | GEN | Bihar | Basant Singh | Indian National Congress | 153112 | 79152 | 51.70% | 25248 | 31.90% | 1985 |
| 160 | 202-Rajpur-Bihar | SC | Bihar | Ram Narain Ram | Bharatiya Janata Party | 128276 | 61951 | 48.30% | 14759 | 23.80% | 1985 |
| 161 | 203-Ramgarh-Bihar | GEN | Bihar | Jagdanand Singh | Lok Dal | 128908 | 78259 | 60.70% | 18584 | 23.70% | 1985 |
| 162 | 204-Mohania-Bihar | SC | Bihar | Mahabir Paswan | Indian National Congress | 138107 | 72981 | 52.80% | 13444 | 18.40% | 1985 |
| 163 | 206-Chainpur-Bihar | GEN | Bihar | Parvej Ahsan Khan | Indian National Congress | 119578 | 70780 | 59.20% | 2514 | 3.60% | 1985 |
| 164 | 207-Chenari-Bihar | SC | Bihar | Chhedi Paswan | Lok Dal | 147425 | 81904 | 55.60% | 2235 | 2.70% | 1985 |
| 165 | 208-Sasaram-Bihar | GEN | Bihar | Ram Sewak Singh | Lok Dal | 158959 | 73206 | 46.10% | 2923 | 4.00% | 1985 |
| 166 | 210-Dinara-Bihar | GEN | Bihar | Lakshuman Rai | Indian National Congress | 133050 | 104388 | 78.50% | 4217 | 4.00% | 1985 |
| 167 | 211-Nokha-Bihar | GEN | Bihar | Sumitra Devi | Indian National Congress | 133683 | 84653 | 63.30% | 422 | 0.50% | 1985 |
| 168 | 212-Dehri-Bihar | GEN | Bihar | Khalid Anwar Ansari | Indian National Congress | 150280 | 79005 | 52.60% | 6896 | 8.70% | 1985 |
| 169 | 213-Karakat-Bihar | GEN | Bihar | Shashi Rani Mishra | Indian National Congress | 151640 | 99254 | 65.50% | 13609 | 13.70% | 1985 |
| 170 | 214-Arwal-Bihar | GEN | Bihar | Krishna Nandan Prasad Singh | Independent | 162687 | 120347 | 74.00% | 34747 | 28.90% | 1985 |
| 171 | 215-Kurtha-Bihar | GEN | Bihar | Nagmani | Independent | 153396 | 112005 | 73.00% | 16329 | 14.60% | 1985 |
| 172 | 216-Jehanabad-Bihar | GEN | Bihar | Syed Asgar Hussain | Indian National Congress | 156343 | 115780 | 74.10% | 25392 | 21.90% | 1985 |
| 173 | 217-Ghosi-Bihar | GEN | Bihar | Jagdish Sharma | Indian National Congress | 154038 | 128558 | 83.50% | 53452 | 41.60% | 1985 |
| 174 | 218-Makhdumpur-Bihar | GEN | Bihar | Ram Jatan Sinha | Indian National Congress | 156496 | 125079 | 79.90% | 17941 | 14.30% | 1985 |
| 175 | 219-Goh-Bihar | GEN | Bihar | Deo Kumar Sharma | Indian National Congress | 138102 | 81391 | 58.90% | 3067 | 3.80% | 1985 |
| 176 | 220-Obra-Bihar | GEN | Bihar | Ram Vilash Singh | Lok Dal | 156618 | 90113 | 57.50% | 7862 | 8.70% | 1985 |
| 177 | 221-Nabinagar-Bihar | GEN | Bihar | Raghubansh Prasad Singh | Indian National Congress | 137708 | 71428 | 51.90% | 19452 | 27.20% | 1985 |
| 178 | 223-Aurangabad-Bihar | GEN | Bihar | Brij Mohan Singh | Indian National Congress | 141646 | 60469 | 42.70% | 4194 | 6.90% | 1985 |
| 179 | 224-Rafiganj-Bihar | GEN | Bihar | Vijay Kumar Singh | Indian National Congress | 125520 | 68916 | 54.90% | 35430 | 51.40% | 1985 |
| 180 | 225-Gurua-Bihar | GEN | Bihar | Md. Khan Ali | Indian National Congress | 154747 | 90569 | 58.50% | 8771 | 9.70% | 1985 |
| 181 | 227-Imamganj-Bihar | SC | Bihar | Sri Chand Singh | Indian National Congress | 114925 | 71595 | 62.30% | 9233 | 12.90% | 1985 |
| 182 | 228-Barachatti-Bihar | SC | Bihar | G.S.Ramchander Das | Indian National Congress | 123555 | 76257 | 61.70% | 34780 | 45.60% | 1985 |
| 183 | 229-Bodh Gaya-Bihar | SC | Bihar | Rajesh Kumar | Lok Dal | 110209 | 72483 | 65.80% | 25066 | 34.60% | 1985 |
| 184 | 230-Gaya Town-Bihar | GEN | Bihar | Jai Kumar Palit | Indian National Congress | 148093 | 80260 | 54.20% | 8270 | 10.30% | 1985 |
| 185 | 232-Belaganj-Bihar | GEN | Bihar | Abhi Ram Sharma | Indian National Congress | 146582 | 114435 | 78.10% | 63142 | 55.20% | 1985 |
| 186 | 233-Atri-Bihar | GEN | Bihar | Ranjeet Signh | Indian National Congress | 162721 | 138797 | 85.30% | 10922 | 7.90% | 1985 |
| 187 | 235-Rajauli-Bihar | SC | Bihar | Banwari Ram | Independent | 158386 | 85401 | 53.90% | 1081 | 1.30% | 1985 |
| 188 | 236-Hisua-Bihar | GEN | Bihar | Aditya Singh | Independent | 140087 | 74257 | 53.00% | 7750 | 10.40% | 1985 |
| 189 | 237-Nawada-Bihar | GEN | Bihar | Narendra Kumar | Indian National Congress | 184116 | 119613 | 65.00% | 2669 | 2.20% | 1985 |
| 190 | 238-Gobindpur-Bihar | GEN | Bihar | Gayatree Devi | Indian National Congress | 163508 | 95701 | 58.50% | 42728 | 44.60% | 1985 |
| 191 | 239-Warsaliganj-Bihar | GEN | Bihar | Bandi Shankar Singh | Indian National Congress | 155781 | 96219 | 61.80% | 43863 | 45.60% | 1985 |
| 192 | 240-Sikandra-Bihar | SC | Bihar | Rameshwar Paswan | Indian National Congress | 143464 | 90794 | 63.30% | 12635 | 13.90% | 1985 |
| 193 | 241-Jamui-Bihar | GEN | Bihar | Sushil Kr Singh | Indian National Congress | 152260 | 96667 | 63.50% | 8253 | 8.50% | 1985 |
| 194 | 242-Jhajha-Bihar | GEN | Bihar | Sheonandan Pd. Yadav | Indian National Congress | 112510 | 69219 | 61.50% | 19892 | 28.70% | 1985 |
| 195 | 243-Chakai-Bihar | GEN | Bihar | Narendra Singh | Indian National Congress | 128857 | 82141 | 63.70% | 33128 | 40.30% | 1985 |
| 196 | 295-Adapur-Bihar | GEN | Bihar | Hari Shanker Prasad Yadav | Indian National Congress | 132991 | 77877 | 58.60% | 4984 | 6.40% | 1985 |
| 197 | 296-Bahera-Bihar | GEN | Bihar | Mahendra Jha Azad | Independent | 129788 | 74721 | 57.60% | 1725 | 2.30% | 1985 |
| 198 | 297-Baheri-Bihar | GEN | Bihar | Permanand Thakur | Indian National Congress | 145812 | 98221 | 67.40% | 19797 | 20.20% | 1985 |
| 199 | 298-Balia-Bihar | GEN | Bihar | Samsu Zeha | Indian National Congress | 140766 | 58856 | 41.80% | 3860 | 6.60% | 1985 |
| 200 | 299-Barauni-Bihar | GEN | Bihar | Shakuntala Sinha | Communist Party Of India | 151526 | 79716 | 52.60% | 4567 | 5.70% | 1985 |
| 201 | 300-Barsoi-Bihar | GEN | Bihar | Byula Doja | Indian National Congress | 118401 | 69657 | 58.80% | 17501 | 25.10% | 1985 |
| 202 | 301-Basantpur-Bihar | GEN | Bihar | Manik Chandra Roy | Indian National Congress | 153464 | 102249 | 66.60% | 11182 | 10.90% | 1985 |
| 203 | 302-Bhabhua-Bihar | GEN | Bihar | Ram Lal Singh | Communist Party Of India | 148051 | 87503 | 59.10% | 11032 | 12.60% | 1985 |
| 204 | 303-Bikramganj-Bihar | GEN | Bihar | Meghraj Madhavi | Lok Dal | 151273 | 105501 | 69.70% | 23051 | 21.80% | 1985 |
| 205 | 304-Chandi-Bihar | GEN | Bihar | Anil Kumar | Indian National Congress | 136085 | 84295 | 61.90% | 31828 | 37.80% | 1985 |
| 206 | 305-Chautham-Bihar | GEN | Bihar | Kamleshwari Singh | Indian National Congress | 134840 | 83523 | 61.90% | 3288 | 3.90% | 1985 |
| 207 | 306-Colgong-Bihar | GEN | Bihar | Sada Nand Singh | Independent | 152104 | 88795 | 58.40% | 12422 | 14.00% | 1985 |
| 208 | 307-Dalsinghsarai-Bihar | GEN | Bihar | Vijay Kumar Choudhary | Indian National Congress | 150307 | 88020 | 58.60% | 14287 | 16.20% | 1985 |
| 209 | 308-Deo-Bihar | SC | Bihar | Dilkeshwar Ram | Indian National Congress | 129862 | 58390 | 45.00% | 19536 | 33.50% | 1985 |
| 210 | 309-Dhanaha-Bihar | GEN | Bihar | Nardeshwar Prasad Kushwaha | Lok Dal | 98956 | 47247 | 47.70% | 250 | 0.50% | 1985 |
| 211 | 310-Dinapur-Bihar | GEN | Bihar | Bijendra Rai | Independent | 142787 | 77371 | 54.20% | 12808 | 16.60% | 1985 |
| 212 | 311-Fatehpur-Bihar | SC | Bihar | Jitan Ram Manjhi | Indian National Congress | 140811 | 102196 | 72.60% | 44813 | 43.90% | 1985 |
| 213 | 312-Gaya Mufassil-Bihar | GEN | Bihar | Awades Kumar Singh | Indian National Congress | 125811 | 95123 | 75.60% | 40465 | 42.50% | 1985 |
| 214 | 313-Ghanshyampur-Bihar | GEN | Bihar | Mahabir Prasad | Lok Dal | 151046 | 94230 | 62.40% | 9998 | 10.60% | 1985 |
| 215 | 314-Ghorasahan-Bihar | GEN | Bihar | Pramod Kumar Singh | Indian National Congress | 132483 | 76115 | 57.50% | 6139 | 8.10% | 1985 |
| 216 | 315-Jalalpur-Bihar | GEN | Bihar | Sudhir Kumar Singh | Indian National Congress | 143962 | 72448 | 50.30% | 2504 | 3.50% | 1985 |
| 217 | 316-Jandaha-Bihar | GEN | Bihar | Tulsi Das Mehta | Lok Dal | 145672 | 105137 | 72.20% | 3776 | 3.60% | 1985 |
| 218 | 317-Kateya-Bihar | GEN | Bihar | Bachcha Choubey | Janta Party | 138413 | 90367 | 65.30% | 15354 | 17.00% | 1985 |
| 219 | 318-Kharagpur-Bihar | GEN | Bihar | Rajendra Pd. Singh | Indian National Congress | 144773 | 93466 | 64.60% | 10720 | 11.50% | 1985 |
| 220 | 319-Kishunpur-Bihar | GEN | Bihar | Vishwanath Gurmita | Indian National Congress | 145429 | 97703 | 67.20% | 8897 | 9.10% | 1985 |
| 221 | 320-Konch-Bihar | GEN | Bihar | Janki Yadav | Lok Dal | 147971 | 109328 | 73.90% | 2678 | 2.40% | 1985 |
| 222 | 321-Kumarkhand-Bihar | SC | Bihar | Nawal Kishore Bharti | Lok Dal | 137983 | 74027 | 53.60% | 977 | 1.30% | 1985 |
| 223 | 322-Madhepur-Bihar | GEN | Bihar | Harkhu Jha | Indian National Congress | 124469 | 75286 | 60.50% | 12438 | 16.50% | 1985 |
| 224 | 323-Mairwa-Bihar | SC | Bihar | Gorakh Ram | Indian National Congress | 119191 | 56636 | 47.50% | 22838 | 40.30% | 1985 |
| 225 | 324-Majorganj-Bihar | SC | Bihar | Ram Vriksh Ram | Indian National Congress | 128119 | 63599 | 49.60% | 11527 | 18.10% | 1985 |
| 226 | 325-Manigachhi-Bihar | GEN | Bihar | Madan Mohan Jha | Indian National Congress | 122239 | 86669 | 70.90% | 42509 | 49.00% | 1985 |
| 227 | 326-Masrakh-Bihar | GEN | Bihar | Prabhu Nath Singh | Independent | 133233 | 61804 | 46.40% | 4178 | 6.80% | 1985 |
| 228 | 327-Mirganj-Bihar | GEN | Bihar | Parbhudayal Singh | Indian National Congress | 127309 | 82696 | 65.00% | 3566 | 4.30% | 1985 |
| 229 | 328-Mokameh-Bihar | GEN | Bihar | Shyam Sunder Singh | Indian National Congress | 155586 | 97442 | 62.60% | 2678 | 2.70% | 1985 |
| 230 | 329-Monghyr-Bihar | GEN | Bihar | Ramdeo Singh Yadav | Lok Dal | 154262 | 98584 | 63.90% | 19547 | 19.80% | 1985 |
| 231 | 330-Pandaul-Bihar | GEN | Bihar | Kumud Ranjan Jha | Indian National Congress | 144989 | 66262 | 45.70% | 15280 | 23.10% | 1985 |
| 232 | 331-Paru-Bihar | GEN | Bihar | Usha Singh | Lok Dal | 141386 | 115824 | 81.90% | 30635 | 26.40% | 1985 |
| 233 | 332-Patna Central-Bihar | GEN | Bihar | Akeel Haider | Indian National Congress | 169468 | 70159 | 41.40% | 19601 | 27.90% | 1985 |
| 234 | 333-Patna East-Bihar | GEN | Bihar | Sharat Kumar Jain | Indian National Congress | 146692 | 74426 | 50.70% | 2767 | 3.70% | 1985 |
| 235 | 334-Patna West-Bihar | GEN | Bihar | Ram Nandan Prasad Alias Ramanand Yadav | Independent | 236069 | 91631 | 38.80% | 10210 | 11.10% | 1985 |
| 236 | 335-Piro-Bihar | GEN | Bihar | Raghu Pati Gope | Lok Dal | 147801 | 78481 | 53.10% | 99 | 0.10% | 1985 |
| 237 | 336-Pupri-Bihar | GEN | Bihar | Ram Briksh Chaudhary | Indian National Congress | 153124 | 85900 | 56.10% | 20376 | 23.70% | 1985 |
| 238 | 337-Sahar-Bihar | SC | Bihar | Jyoti | Indian National Congress | 137996 | 66846 | 48.40% | 24589 | 36.80% | 1985 |
| 239 | 338-Shikarpur-Bihar | SC | Bihar | Narsingh Baitha | Indian National Congress | 126891 | 74805 | 59.00% | 53398 | 71.40% | 1985 |
| 240 | 339-Singhia-Bihar | GEN | Bihar | Ashok Kumar | Indian National Congress | 131079 | 83073 | 63.40% | 35339 | 42.50% | 1985 |
| 241 | 340-Sonbarsa-Bihar | GEN | Bihar | Kapoori Thakur | Lok Dal | 139367 | 90547 | 65.00% | 24947 | 27.60% | 1985 |
| 242 | 340-Sonbarsa-Bihar | GEN | Bihar | Surya Narayan Yadav | Lok Dal | 152663 | 104781 | 68.60% | 40352 | 38.50% | 1985 |
| 243 | 341-Barhait-Bihar | ST | Bihar | Thomas Hansda | Indian National Congress | 109349 | 64700 | 59.20% | 18300 | 28.30% | 1985 |
| 244 | 343-Borio-Bihar | ST | Bihar | Jon Hembrom | Indian National Congress | 125059 | 51260 | 41.00% | 10473 | 20.40% | 1985 |
| 245 | 344-Deoghar-Bihar | SC | Bihar | Baidyanath Das | Indian National Congress | 146249 | 44668 | 30.50% | 3667 | 8.20% | 1985 |
| 246 | 345-Dumka-Bihar | ST | Bihar | Stephan Marandi | Jharkhand Mukti Morcha | 123031 | 54996 | 44.70% | 1238 | 2.30% | 1985 |
| 247 | 346-Godda-Bihar | GEN | Bihar | Sumrit Mandal | Jharkhand Mukti Morcha | 139092 | 83186 | 59.80% | 638 | 0.80% | 1985 |
| 248 | 347-Jama-Bihar | ST | Bihar | Shibu Soren | Jharkhand Mukti Morcha | 109838 | 54016 | 49.20% | 18344 | 34.00% | 1985 |
| 249 | 348-Jamtara-Bihar | GEN | Bihar | Md. Furkan Ansari | Indian National Congress | 113980 | 62510 | 54.80% | 3171 | 5.10% | 1985 |
| 250 | 349-Jarmundi-Bihar | GEN | Bihar | Abhay Kant Prasad | Bharatiya Janata Party | 110051 | 53465 | 48.60% | 2445 | 4.60% | 1985 |
| 251 | 350-Litipara-Bihar | ST | Bihar | Simon Marandi | Jharkhand Mukti Morcha | 100813 | 49995 | 49.60% | 17814 | 35.60% | 1985 |
| 252 | 351-Madhupur-Bihar | GEN | Bihar | Krishna Nand Jha | Indian National Congress | 138507 | 71638 | 51.70% | 24656 | 34.40% | 1985 |
| 253 | 352-Mahagama-Bihar | GEN | Bihar | Awadh Bihari Singh | Indian National Congress | 142139 | 85776 | 60.30% | 35485 | 41.40% | 1985 |
| 254 | 353-Maheshpur-Bihar | ST | Bihar | Debidhan Basera | Jharkhand Mukti Morcha | 109599 | 46316 | 42.30% | 3025 | 6.50% | 1985 |
| 255 | 354-Nala-Bihar | GEN | Bihar | Bisheshwar Khan | Communist Party Of India | 124364 | 63016 | 50.70% | 6665 | 10.60% | 1985 |
| 256 | 355-Pakaur-Bihar | GEN | Bihar | Hazi Muhammad Ainul Haque | Indian National Congress | 118731 | 69493 | 58.50% | 12249 | 17.60% | 1985 |
| 257 | 356-Poreyahat-Bihar | GEN | Bihar | Suraj Mandal | Jharkhand Mukti Morcha | 139737 | 74628 | 53.40% | 2686 | 3.60% | 1985 |
| 258 | 357-Rajmahal-Bihar | GEN | Bihar | Dhruva Bhagat | Bharatiya Janata Party | 132520 | 72407 | 54.60% | 397 | 0.50% | 1985 |
| 259 | 358-Sarath-Bihar | GEN | Bihar | Udai Shanker Singh | Independent | 123305 | 75535 | 61.30% | 13785 | 18.20% | 1985 |
| 260 | 359-Sikaripara-Bihar | ST | Bihar | David Murmu | Jharkhand Mukti Morcha | 119382 | 41010 | 34.40% | 5214 | 12.70% | 1985 |
| 261 | 360-Baghmara-Bihar | GEN | Bihar | Om Prakash Lal | Indian National Congress | 134701 | 61112 | 45.40% | 20718 | 33.90% | 1985 |
| 262 | 361-Bagodar-Bihar | GEN | Bihar | Gautam Sagar Rana | Lok Dal | 131411 | 55136 | 42.00% | 456 | 0.80% | 1985 |
| 263 | 362-Baharagora-Bihar | GEN | Bihar | Devi Pada Upadhyay | Communist Party Of India | 119997 | 71360 | 59.50% | 1224 | 1.70% | 1985 |
| 264 | 363-Barhi-Bihar | GEN | Bihar | Niranjan Prasad Singh | Indian National Congress | 105773 | 45661 | 43.20% | 104 | 0.20% | 1985 |
| 265 | 364-Barkagaon-Bihar | GEN | Bihar | Ramendra Kumar | Communist Party Of India | 161000 | 76134 | 47.30% | 5436 | 7.10% | 1985 |
| 266 | 365-Barkatha-Bihar | GEN | Bihar | Lambodar Pathak | Indian National Congress | 131491 | 72943 | 55.50% | 4758 | 6.50% | 1985 |
| 267 | 366-Bermo-Bihar | GEN | Bihar | Rajendra Prasad Singh | Indian National Congress | 145759 | 74836 | 51.30% | 9696 | 13.00% | 1985 |
| 268 | 367-Bhawanathpur-Bihar | GEN | Bihar | Raj Rajendra Pratap Deo | Indian National Congress | 136662 | 58490 | 42.80% | 6086 | 10.40% | 1985 |
| 269 | 368-Bishnupur-Bihar | ST | Bihar | Bhukhala Bhagat | Indian National Congress | 120149 | 32261 | 26.90% | 20467 | 63.40% | 1985 |
| 270 | 369-Bishrampur-Bihar | GEN | Bihar | Chandrashekhar Dubey | Indian National Congress | 125654 | 70960 | 56.50% | 11383 | 16.00% | 1985 |
| 271 | 370-Bokaro-Bihar | GEN | Bihar | Samaresh Singh | Bharatiya Janata Party | 203169 | 81218 | 40.00% | 18367 | 22.60% | 1985 |
| 272 | 371-Chaibasa-Bihar | ST | Bihar | Radhey Munda | Bharatiya Janata Party | 105403 | 37019 | 35.10% | 1658 | 4.50% | 1985 |
| 273 | 372-Chakradharpur-Bihar | ST | Bihar | Jagarnath Bakira | Bharatiya Janata Party | 99412 | 42747 | 43.00% | 505 | 1.20% | 1985 |
| 274 | 373-Chandankiyari-Bihar | SC | Bihar | Lata Devi (Mali) | Indian National Congress | 116436 | 41008 | 35.20% | 428 | 1.00% | 1985 |
| 275 | 374-Chatra-Bihar | SC | Bihar | Mahendra Prasad Signh Bhogta | Bharatiya Janata Party | 134999 | 48807 | 36.20% | 3967 | 8.10% | 1985 |
| 276 | 375-Dhanbad-Bihar | GEN | Bihar | Surendra Prasad Roy | Indian National Congress | 194744 | 68302 | 35.10% | 10721 | 15.70% | 1985 |
| 277 | 376-Dhanwar-Bihar | GEN | Bihar | Harihar Narayan Prabhakar | Bharatiya Janata Party | 130006 | 60773 | 46.70% | 2768 | 4.60% | 1985 |
| 278 | 377-Dumri-Bihar | GEN | Bihar | Shiva Mahto | Independent | 116166 | 55255 | 47.60% | 6973 | 12.60% | 1985 |
| 279 | 378-Gandey-Bihar | GEN | Bihar | Salkhan Soren | Jharkhand Mukti Morcha | 113103 | 59542 | 52.60% | 4242 | 7.10% | 1985 |
| 280 | 379-Garhwa-Bihar | GEN | Bihar | Gopi Nath Singh | Bharatiya Janata Party | 127110 | 53906 | 42.40% | 806 | 1.50% | 1985 |
| 281 | 380-Ghatsila-Bihar | ST | Bihar | Karan Chandra Mardi | Indian National Congress | 118693 | 64412 | 54.30% | 1820 | 2.80% | 1985 |
| 282 | 381-Giridih-Bihar | GEN | Bihar | Om Lal Azad | Communist Party Of India | 118832 | 52385 | 44.10% | 5696 | 10.90% | 1985 |
| 283 | 382-Gomia-Bihar | GEN | Bihar | Madhava Lal Singh | Independent | 117550 | 62726 | 53.40% | 6215 | 9.90% | 1985 |
| 284 | 383-Gumla-Bihar | ST | Bihar | Bairagi Oraon | Indian National Congress | 107861 | 43209 | 40.10% | 6811 | 15.80% | 1985 |
| 285 | 384-Hatia-Bihar | GEN | Bihar | Subodh Kant Sahay | Janta Party | 122445 | 46174 | 37.70% | 10779 | 23.30% | 1985 |
| 286 | 385-Hazaribagh-Bihar | GEN | Bihar | H.H.Rahman | Indian National Congress | 142851 | 70883 | 49.60% | 14485 | 20.40% | 1985 |
| 287 | 386-Hussainabad-Bihar | GEN | Bihar | Harihar Singh | Indian National Congress | 117664 | 57760 | 49.10% | 2326 | 4.00% | 1985 |
| 288 | 387-Ichagarh-Bihar | GEN | Bihar | Prabhat K. A. Deo | Indian National Congress | 123521 | 68648 | 55.60% | 6234 | 9.10% | 1985 |
| 289 | 388-Jaganathpur-Bihar | ST | Bihar | Ankura Ho Doreiburu | Indian National Congress | 90777 | 30023 | 33.10% | 5443 | 18.10% | 1985 |
| 290 | 389-Jamshedpur East-Bihar | GEN | Bihar | Darayus Nariman | Indian National Congress | 130898 | 68481 | 52.30% | 7798 | 11.40% | 1985 |
| 291 | 390-Jamshedpur West-Bihar | GEN | Bihar | Mrigendra Pratap Singh | Bharatiya Janata Party | 125871 | 65792 | 52.30% | 1456 | 2.20% | 1985 |
| 292 | 391-Jamua-Bihar | SC | Bihar | Baldeo Hazra | Communist Party Of India | 128203 | 62139 | 48.50% | 18492 | 29.80% | 1985 |
| 293 | 392-Jharia-Bihar | GEN | Bihar | Suryadeo Singh | Janta Party | 157157 | 64216 | 40.90% | 12555 | 19.60% | 1985 |
| 294 | 393-Jugsalai-Bihar | SC | Bihar | Trilochan Kalindi | Indian National Congress | 146311 | 56543 | 38.60% | 16788 | 29.70% | 1985 |
| 295 | 394-Kanke-Bihar | SC | Bihar | Hari Ram | Indian National Congress | 132476 | 39894 | 30.10% | 8551 | 21.40% | 1985 |
| 296 | 395-Kharasawan-Bihar | ST | Bihar | Vijay Singh Soy | Independent | 104968 | 39239 | 37.40% | 12150 | 31.00% | 1985 |
| 297 | 396-Khijri-Bihar | ST | Bihar | Gomeshri Manki | Indian National Congress | 131815 | 40385 | 30.60% | 5742 | 14.20% | 1985 |
| 298 | 397-Khunti-Bihar | ST | Bihar | Sushila Kerketta | Indian National Congress | 97266 | 41802 | 43.00% | 5438 | 13.00% | 1985 |
| 299 | 398-Kodarma-Bihar | GEN | Bihar | Rajendra Nath Dawan | Indian National Congress | 136753 | 73162 | 53.50% | 4824 | 6.60% | 1985 |
| 300 | 399-Kolebira-Bihar | ST | Bihar | Birsing Munda | Independent | 105073 | 41267 | 39.30% | 4748 | 11.50% | 1985 |
| 301 | 400-Latehar-Bihar | SC | Bihar | Haridarshan Ram | Indian National Congress | 104924 | 23996 | 22.90% | 1312 | 5.50% | 1985 |
| 302 | 401-Lohardaga-Bihar | ST | Bihar | Indra Nath Bhagat | Indian National Congress | 109543 | 39738 | 36.30% | 21761 | 54.80% | 1985 |
| 303 | 402-Majhgaon-Bihar | ST | Bihar | Devendra Nath Champia | Indian National Congress | 95831 | 35463 | 37.00% | 7338 | 20.70% | 1985 |
| 304 | 403-Mandar-Bihar | ST | Bihar | Ganga Bhagat | Indian National Congress | 139328 | 52730 | 37.80% | 9803 | 18.60% | 1985 |
| 305 | 404-Mandu-Bihar | GEN | Bihar | Tek Lal Mahto | Independent | 146258 | 57752 | 39.50% | 6573 | 11.40% | 1985 |
| 306 | 405-Manika-Bihar | ST | Bihar | Yamuna Singh | Bharatiya Janata Party | 89755 | 32667 | 36.40% | 11569 | 35.40% | 1985 |
| 307 | 406-Manoharpur-Bihar | ST | Bihar | Devendra Manjhi | Independent | 99719 | 46011 | 46.10% | 7069 | 15.40% | 1985 |
| 308 | 407-Nirsa-Bihar | GEN | Bihar | Kripa Shanker Chatterjee | Indian National Congress | 145848 | 64602 | 44.30% | 15407 | 23.80% | 1985 |
| 309 | 408-Panki-Bihar | GEN | Bihar | Sankteshwar Singh | Indian National Congress | 112924 | 52385 | 46.40% | 20766 | 39.60% | 1985 |
| 310 | 409-Potka-Bihar | ST | Bihar | Sonatan Sardar | Indian National Congress | 133067 | 43343 | 32.60% | 6007 | 13.90% | 1985 |
| 311 | 410-Ranchi-Bihar | GEN | Bihar | Jai Prakash Gupta | Indian National Congress | 131685 | 45578 | 34.60% | 6437 | 14.10% | 1985 |
| 312 | 411-Seraikella-Bihar | ST | Bihar | Krishna Madri | Jharkhand Mukti Morcha | 126446 | 48338 | 38.20% | 701 | 1.50% | 1985 |
| 313 | 412-Silli-Bihar | GEN | Bihar | Keshav Mahto Kamlesh | Indian National Congress | 109556 | 55930 | 51.10% | 11811 | 21.10% | 1985 |
| 314 | 413-Simaria-Bihar | SC | Bihar | Ishwari Ram Paswan | Indian National Congress | 123494 | 43052 | 34.90% | 5590 | 13.00% | 1985 |
| 315 | 414-Simdega-Bihar | ST | Bihar | Nirmal Kumar Besra | Bharatiya Janata Party | 109754 | 47288 | 43.10% | 3291 | 7.00% | 1985 |
| 316 | 415-Sindri-Bihar | GEN | Bihar | Vinod Vihari Mahato | Independent | 148657 | 68512 | 46.10% | 1779 | 2.60% | 1985 |
| 317 | 416-Sisai-Bihar | ST | Bihar | Bandi Oraon | Indian National Congress | 117656 | 44589 | 37.90% | 13388 | 30.00% | 1985 |
| 318 | 417-Tamar-Bihar | ST | Bihar | Tirumuchi Rai Munda | Indian National Congress | 117256 | 55153 | 47.00% | 23222 | 42.10% | 1985 |
| 319 | 418-Torpa-Bihar | ST | Bihar | Niral Enem Horo | Independent | 94518 | 44333 | 46.90% | 39 | 0.10% | 1985 |
| 320 | 419-Tundi-Bihar | GEN | Bihar | Satya Narayan Dudani | Bharatiya Janata Party | 121642 | 57299 | 47.10% | 24 | 0.00% | 1985 |
| 321 | 420-Chhatarpur-Bihar | SC | Bihar | Radha Krishana Kishor | Indian National Congress | 108762 | 39474 | 36.30% | 16542 | 41.90% | 1985 |
| 322 | 421-Daltonganj-Bihar | GEN | Bihar | Ishwar Chandra Pandey | Indian National Congress | 143921 | 58228 | 40.50% | 4053 | 7.00% | 1985 |
| 323 | 422-Kishanganj-Bihar | GEN | Bihar | Md. Mustaque | Lok Dal | 141352 | 77368 | 54.70% | 11026 | 14.30% | 1985 |
| 324 | 423-Ramgarh-Bihar | GEN | Bihar | Jamuna Prasad Sharma | Indian National Congress | 129750 | 71642 | 55.20% | 461 | 0.60% | 1985 |
Data-driven analysis covering competitiveness, candidate performance, and voter behaviour.
A constituency with a margin under 5,000 votes is considered closely fought. The average margin in Bihar 1985 was 12,770 votes.
The 10 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 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 Bihar Vidhan Sabha (Legislative Assembly) is the lower house of the state legislature. MLAs are directly elected by voters through universal adult suffrage.
Bihar is divided into 324 assembly constituencies. The constituencies are categorized as: GEN (248 seats), SC (48 seats), ST (28 seats). SC and ST reserved constituencies ensure representation for historically marginalized communities.
To form a government, a party or coalition needs at least 163 seats (simple majority of 324 seats). The leader is invited by the Governor to become Chief Minister.
Elections are conducted by the Election Commission of India (ECI) using Electronic Voting Machines (EVMs) and Voter Verifiable Paper Audit Trail (VVPAT).