All assembly constituencies — Bihar assembly election, Jun 1980
324 assembly constituencies declared, sorted by largest victory.
| Assembly seat | State | Winner | Runner-up | Margin |
|---|---|---|---|---|
| TAMAR | Bihar | INC(I)TIRU MUCHIRAI MUNDA | CPMBUDHAN LAL MUNDA | 4,66112.21% |
| DUMKA | Bihar | JMMSTEPHAN MARANDI | INDSTENSHILA HEMBROM | 5,19311.65% |
| DUMRI | Bihar | JMMSHIBA MAHTO | JNPSCLALCHAND MAHTO | 5,26311.62% |
| JARMUNDI | Bihar | INDJAWAHAR PARSAD SINGH | INDDIP NATH RAI | 6,03011.52% |
| BORIO | Bihar | INC(I)JOHN HEMROM | JMMSHEO MARANDI | 3,83511.41% |
| DHAMDAHA | Bihar | JNPSCSURJA NARAYAN SINGH YADAV | INC(I)JAINARYANA MEHTA | 7,67711.34% |
| LAUKAHA | Bihar | CPILAL BIHARI YADAV | INC(I)KULDEO GOIT | 9,86611.26% |
| BAHARAGORA | Bihar | CPIDEVI PADA UPADHYAYA | INC(I)VISHNU PADA GHOSH | 6,90211.14% |
| MARHAURA | Bihar | INC(I)BHISHMA PRASAD YADAV | INDAMAR KR. PANDEY | 9,21811.04% |
| NAUTAN | Bihar | INC(I)KAMLA DEVI | CPIRAWAKANT DWIVEDI | 5,60710.99% |
| BAKHRI | Bihar | CPIRAMCHANDRA PASWAN | INC(I)YUGAL KISHORE SHARMA | 6,33210.95% |
| BAISI | Bihar | INDSAYAD MOINUDDIN | INC(I)HASIBUR RAHMAN | 5,85810.93% |
| FORBESGANJ | Bihar | INC(I)SARYU MISHRA | CPINAKSHTRA MALAKAN | 7,65910.92% |
| SINGHESHWAR | Bihar | JNPSCJAI KUMAR SINGH | INC(I)RAM KRISHNA YADAV | 8,21710.91% |
| RANCHI | Bihar | INC(I)GYAN RANGAN | BJPNANI GOPAL MITRA | 5,78210.35% |
| BOKARO | Bihar | JNPSCAKLU RAM MAHTO | BJPSAMRESH SINGH | 9,82410.35% |
| SIKTI | Bihar | INC(I)SHITAL PD. GUPTA | JNPSCMD. AZIMUDDIN | 8,37410.32% |
| BIHAR | Bihar | CPIDEONATH PRASAD | INC(I)NASIM UDDIN ANSARI | 9,84010.18% |
| SIMDEGA | Bihar | BJPMIRMAL KUMAR DESRA | INC(I)SIMON TIGGA | 2,92910.10% |
| BAIKUNTHPUR | Bihar | JNPJPBRAJ KISHORE NARAIN SINGH | JNPSCDEDOAT RAI | 6,71810.07% |
| DARBHANGA | Bihar | INC(I)ABDUL SAMI NADVI | JNPSCKAMESHWAR PURBE | 6,9949.93% |
| LAKHISARAI | Bihar | INC(I)ASHWANI KUMAR SHARMA | INDYADUBANSH SINGH | 9,5169.93% |
| SONEPUR | Bihar | JNPSCLALU PRASAD | INC(I)JAWAHAR PRASAD SINGH | 9,1679.81% |
| BARARI | Bihar | INC(I)KARUNESHWAR SINGH | JNPSCSAPANA DEVI | 5,5529.81% |
| PIRO | Bihar | INC(I)MUNI SINGH | INDINDRAMANI SINGH | 7,7139.75% |
| RAJGIR | Bihar | BJPSATYADEO NARAYAN ARYA | CPICHANDRADEO PRASAD HIMANSHU | 7,5719.68% |
| ALAMNAGAR | Bihar | JNPSCBIRENDRA KUMAR | INC(I)VIDYAKAR KAVI | 7,6039.68% |
| BERMO | Bihar | BJPRAMDAS SINGH | INC(I)KUNWAR PRASAD SINGH | 5,9859.54% |
| KHIJRI | Bihar | INC(I)UMRAON SADHO KUJUR | INDS. LAKRA | 4,3549.40% |
| BANIAPUR | Bihar | INC(I)UMA PANDEY | BJPRAMA KANT PANDEY | 5,3129.33% |
| GHORASAHAN | Bihar | INC(I)RAJENDRA PRATAP SINGH | INC(U)LAL BABOO PRASAD | 7,0649.30% |
| PATEPUR | Bihar | JNPSCSHIV NANDAN PAWAN | INC(I)BALESHWAR SINGH | 5,6999.12% |
| AURANGABAD | Bihar | INDRAM NARESH SINGH | SSDSURAJDEO SINGH | 6,7939.11% |
| DUMRAON | Bihar | INC(I)RAJA RAM ARYA | CPIRAM ACHARAY SINGH | 6,5009.05% |
| DHURAIYA | Bihar | CPINARESH DAS | INC(I)RAMRUP HARIZAN | 6,4458.85% |
| BALIA | Bihar | JNPSCSRINARHYAN YADAV | INC(I)CHANDRABHANU DEVI | 6,9228.76% |
| KEOTI | Bihar | INC(I)SHAMAOLE NABI | JNPSCFUZIUR RAHMAN | 8,2688.63% |
| DALTONGANJ | Bihar | BJPINDER SINGH NAMDHARI | INC(I)DINANATH TEWARY | 4,6488.59% |
| JAHANABAD | Bihar | INC(U)TARA GUPTA | INC(I)FIDA HUSSAIN | 9,5838.38% |
| SHEOHAR | Bihar | INC(I)RAGHUNATH JHA | INDJAFIR ALAM | 8,5028.34% |
| KATEYA | Bihar | INC(I)SIHASWAR SAHI | BJPBACHA CHOUBEY | 6,6508.24% |
| DARAULI | Bihar | INC(I)CHANDRIKA PANDEY | INC(U)MRITYUNJAY PRASAD SINGH | 5,1318.16% |
| DINARA | Bihar | INC(I)LAKSHMAN RAI | JNPSCRAMDHANI SINGH | 7,0018.15% |
| JALE | Bihar | CPIABDUL SALAM | INC(I)SUSHIL KUMAR JHA | 5,9768.10% |
| SONBARSA | Bihar | INC(U)SURYA NA. YADAV | INC(I)K.K. MANDAL | 8,0438.07% |
| BEGUSARAI | Bihar | INC(I)BHOLA SINGH | CPMBASUDEO SINGH | 5,4998.04% |
| BARAUNI | Bihar | CPIRAMESHWAR SINGH | INC(I)SIDHESHWAR PRASAD SINGH | 6,4327.92% |
| SANDESH | Bihar | INC(I)SIDH NATH RAI | INC(U)SONADHARI SINGH | 4,6197.85% |
| SARAIRANJAN | Bihar | JNPSCRAM BILAS MISHRA | INC(I)SURAJ CHOUDHARY | 6,5437.74% |
| NABINAGAR | Bihar | INC(I)RADHUBANSH PD. SINGH | INC(U)RAM NANDAN SINGH | 5,6887.69% |
