CPI
CPI(ML)(L)JD(S)NCPRJDRSPSPSHSThe table below lists Communist Party of India (CPI) candidates, their total votes, vote share and final position in Patna Lok Sabha Constituency in Bihar.
| Election year | Candidate Name | Votes Received | Vote Share (%) | Position | Status |
|---|---|---|---|---|---|
| 1989 | Ram Nath Yadav | 155,224 | 25.03 | 3 | Lost |
| 1984 | Ramavatar Shashtri | 142,808 | 28.81 | 2 | Lost |
| 1980 | Ramavatar Shastri | 167,290 | 39.8 | 1 | Won |
| 1977 | Ramavatar Shastri | 59,238 | 11.87 | 2 | Lost |
| 1971 | Ramavatar Shastri | 191,911 | 50.76 | 1 | Won |
| 1967 | R. A. Shastri | 148,963 | 47.5 | 1 | Won |
| 1962 | Ramavatar Shashtri | 76,605 | 33.82 | 2 | Lost |
| 1957 | Ramautar Shastri | 66,936 | 46.95 | 2 | Lost |