1985 Bihar Legislative Assembly electionResult
 |
| Party | Party Flag | Seats Contested | Seats Won | Popular Vote | Percentage |
| Indian National Congress | | 323 | 196 | 9,558,562 | 39.30% |
| Lok Dal |  | 261 | 46 | 3,573,173 | 14.69% |
| Bharatiya Janata Party | | 234 | 16 | 1,833,275 | 7.54% |
| Janata Party |  | 229 | 13 | 1,754,705 | 7.21% |
| Communist Party of India |  | 167 | 12 | 2,154,066 | 8.86% |
| Jharkhand Mukti Morcha |  | 57 | 9 | 443,822 | 1.82% |
| Communist Party of India (Marxist) |  | 44 | 1 | 392,375 | 1.61% |
| Indian Congress (Socialist) |  | 59 | 1 | 160,159 | 0.66% |
| Socialist Unity Centre of India |  | 1 | 1 | 17,890 | 0.07% |
| Independents |  | 2804 | 29 | 4,349,057 | 17.88% |
| Total | | 4237 | 324 | 24,323,868 | |
Source:[2]