Official results for the 1970 Bihar Legislative Assembly election. IND won the most seats with 2 out of 4.
Total seats: 4. Majority mark: 2.
| Party | Seats | Vote Share |
|---|---|---|
| IND | 2 | 55.9% |
| BJS | 1 | 14.3% |
| JP | 1 | 8.0% |
| JKP | 0 | 1.3% |
| CPM | 0 | 2.3% |
| NCN | 0 | 0.1% |
| SOP | 0 | 8.4% |
| NCJ | 0 | 9.4% |
| Constituency | Winner | Party | Margin % |
|---|---|---|---|
| HAZARIBAGH | P.N.SINGH | JP | 23.0% |
| JAGANATHPUR | B.S,MUNDA | IND | 15.7% |
| NAWADA | G.DEVI | IND | 30.6% |
| RUNISAIDPUR | R.RAM | BJS | 6.7% |