Mahabir Singh had the following finishes at major championships – 1982 World Championship: 52.0 kg. Freestyle (7th); 1982 Commonwealth Games: 52.0 kg. Freestyle (1st).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Wrestling |  IND |
Mahabir Singh | |||
| Light-Flyweight, Greco-Roman, Men (Olympic) | ||||||
| Light-Flyweight, Freestyle, Men (Olympic) | 5 | |||||
| 1984 Summer Olympics | Wrestling | IND |
Mahabir Singh | |||
| Flyweight, Freestyle, Men (Olympic) | 6 |
