All assembly constituencies — Bihar assembly election, Jun 1980
324 assembly constituencies declared, sorted by largest victory.
| Assembly seat | State | Winner | Runner-up | Margin |
|---|---|---|---|---|
| BARBIGHA | Bihar | INC(I)MAHABIR CHOUDHARY | JNPSCRAMJI PRASAD | 54,14765.29% |
| SAHARSA | Bihar | INC(I)RAMESH JHA | CPIJANARDAN PANDEY | 53,55556.26% |
| DEO | Bihar | INC(I)DILKESHWAR RAM | CPIGANESHI PRASAD | 31,78755.86% |
| MUZAFFARPUR | Bihar | INC(I)RAGHUNATH PANDEY | BJPRAM KIRPAL SINGH | 55,84354.50% |
| NIRSA | Bihar | INDKRIPA SHANKAR CHATTERJEE | INC(I)CHANDAN GHOSH | 31,51453.75% |
| JHANJHARPUR | Bihar | INC(I)JAGANNATH MISHRA | JNPSCRAM DEO BHANDARI | 49,18951.57% |
| PARSA | Bihar | INC(I)DAROGA PRASAD RAI | CPIRAM NATH SINGH | 41,29251.24% |
| LOHARDAGA | Bihar | INC(I)INDRA NATH BHAGAT | BJPARUN ORAON | 18,27050.49% |
| RAMNAGAR | Bihar | INC(I)ARJUN VIKRAM SHAH | BJPHARI SHANKAR TIWARI | 24,06047.62% |
| CHATRA | Bihar | INC(I)MAHESH RAM | BJPBIKU RAM | 16,87046.34% |
| IMAMGANJ | Bihar | INC(I)SHRICHAND SINGH | JNPSCISHWAR DAS | 19,20144.34% |
| COLGONG | Bihar | INC(I)SADANAND SINGH | JNPSCJAGESHWAR MANDAL | 38,53443.72% |
| SIMARIA | Bihar | INC(I)ISHWARI RAM PASWAN | BJPUPENDRA NATH DAS | 14,46043.27% |
| CHHATARPUR | Bihar | INC(I)RADHA KRISHNA KISHORE | JNPSCJORAWAR RAM | 14,17240.39% |
| MAJHGAON | Bihar | INC(I)DEVENDRA NATH CHAMPIA | INDDURMU KALUNDIA | 8,91739.89% |
| SINDRI | Bihar | INDANAND MAHTO | INDMOKHTAR AHMAD ANSARI | 25,70539.74% |
| SHEIKHPURA | Bihar | INC(I)RAJO SINGH | CPISATISH KUMAR | 43,86139.50% |
| BHAWANATHPUR | Bihar | INC(I)SHANKAR PRATAP DEO | JNPSCRAM CHANDRA PRASAD KOSH | 22,23339.44% |
| MANDAR | Bihar | INC(I)KARAM CHAND BHAGAT | JNPSCLALU ORAON | 18,17437.72% |
| BAGHA | Bihar | INC(I)TRILOKI HARIJAN | BJPMELAHA MEHTO | 20,58637.65% |
| ROSERA | Bihar | INC(I)RAMASHARY RAI | JNPSCRAMLAKHAN SINGH | 34,60237.27% |
| MANIGACHHI | Bihar | INC(I)NAGENDRA JHA | JNPSCINDRA KANT JHA | 31,61636.03% |
| MAJORGANJ | Bihar | INC(I)RAM BRIKSHA RAM | INC(U)DINKAR RAM | 26,02735.99% |
| MADHUPUR | Bihar | INC(I)KRISHNA NAND JHA | BJPAJIT KUMAR BANERJEE | 21,30335.82% |
| MADHEPUR | Bihar | INC(I)RADHANANDAN JHA | JNPSCSIYA RAM YADAV | 35,85735.26% |
| HUSSAINABAD | Bihar | INC(I)HARIHAR SINGH | CPIBRAJ NANDAN SINGH | 17,79834.97% |
| CHAKRADHARPUR | Bihar | JMMDEVENDRA MANJHI | BJPJAGANNATH BANKIRA | 12,76134.95% |
| DHANBAD | Bihar | INC(I)YOGESHWAR PRASAD YOGESH | CPMGOPI KANT BAKSHI | 24,06134.83% |
| ARRAH | Bihar | INC(I)S.M. ISA | JNPSCSUMITRA DEVI | 23,38934.53% |
| BAKHTIARPUR | Bihar | INC(U)RAM LAKHAN SINGH YADAV | INC(I)RAM CHANDRA SINGH CHAUHAN | 39,12434.32% |
| MADHUBAN | Bihar | INC(I)VRAJ KISHORE SINGH | JNPSCMAHENDRA RAI | 28,49234.30% |
| BANKA | Bihar | INC(I)THAKUR KAMAKHAYS PRASAD SINGH | JNPJPSIDESHWAR PRASAD SINGH | 19,86334.02% |
| BAGHMARA | Bihar | INC(I)SHANKAR DAYAL SINGH | INDBASDEO HAZARI | 20,94933.06% |
| DEOGHAR | Bihar | INC(I)BAIDYA NATH DAS | CPIRABI KANT DAS | 15,69932.98% |
| GIRIDIH | Bihar | INC(I)URMILA DEBI | CPICHATURNAN MISHRA | 16,79832.27% |
| CHANDI | Bihar | INC(I)RAMRAJ PRASAD SINGH | JNPSCHARI NARAIN SINGH | 25,22731.56% |
| LAURIA | Bihar | INC(I)VISHWAMOHAN SHARMA | JNPJPAJAJ AHMAD | 17,48331.51% |
| SAMASTIPUR | Bihar | JNPSCKARPOORI THAKUR | INC(I)CHANDRA SHEKHAR VERMA | 27,15931.35% |
| LALGANJ | Bihar | INC(I)LALITESHWAR PRASAD SHAHI | JNPSCJAY NARAIN PRASAD NISAD | 22,85730.60% |
| NOKHA | Bihar | JNPSCJANGI SINGH CHOUDHARY | INC(I)JAGDISH OJHA | 23,80230.35% |
| RAFIGANJ | Bihar | JNPJPVIJAY KUMAR SINGH | CPIISTEYAK AHMAD KHAN | 21,59930.33% |
| POREYAHAT | Bihar | JMMSURAJ MANDAL | INDLAKHAN MAHTON | 17,95630.09% |
| RAGHOPUR | Bihar | INC(I)AMRENDRA MISHRA | INDKUMAR SHASHINDRA SINGH | 25,54729.77% |
| PIPRA | Bihar | INC(I)NAND LAL CHAUDHARY | CPITULSI RAM | 14,53429.67% |
| MAHISHI | Bihar | INC(I)LAHTAN CHAUDHRY | INC(U)SATYA NA. YADAV | 26,60329.21% |
| BISHNUPUR | Bihar | INC(I)DHUKHLA BHAGAT | BJPKARMA ORAON | 9,34429.02% |
| PARBATTA | Bihar | INC(I)RAM CHANDRA MISHRA | JNPSCNAYEEM AKHTAR | 24,84427.54% |
| RAGHUNATHPUR | Bihar | INC(I)VIJAY SHANKAR DUBEY | BJPVIKRAM KUMAR | 17,81327.52% |
| GOREAKOTHI | Bihar | INC(I)AJIT KUMAR SINGH | BJPINDRADEO PRASAD | 19,06327.23% |
| GOBINDPUR | Bihar | INC(I)GAYATRI DEVI | BJPLAXMI NARAYAN SINGH | 24,48427.10% |
