CPI
CPI(ML)(L)JD(U)JMMRJDSHSThe table below lists Communist Party of India (CPI) candidates, their total votes, vote share and final position in Jahanabad Lok Sabha Constituency in Bihar.
| Election year | Candidate Name | Votes Received | Vote Share (%) | Position | Status |
|---|---|---|---|---|---|
| 1998 | Ramasaray Prasad Singh | 46,962 | 5.61 | 4 | Lost |
| 1996 | Ramashraya Prasad Singh | 281,157 | 35.72 | 1 | Won |
| 1991 | Ramramasharay Prasad Singh | 332,484 | 43.42 | 1 | Won |
| 1989 | Ramashray Prasad Singh | 286,800 | 41.59 | 1 | Won |
| 1984 | Ramasharay Pd. Singh | 376,640 | 50.68 | 1 | Won |
| 1980 | Chandra Shekhar Singh | 203,804 | 36.16 | 2 | Lost |
| 1977 | Chandra Shekhar Singh | 59,467 | 12.13 | 3 | Lost |
| 1971 | Chandra Shekhar Sinha | 163,733 | 42.19 | 1 | Won |
| 1967 | C. S. Singh | 112,287 | 40.81 | 1 | Won |
| 1962 | Chandra Shekhar Singh | 39,064 | 17.64 | 2 | Lost |