| IRPFS- (Indian Railway Protection Force Service) |
| IRMS- (Indian Railway Management Service) |
| IRPS- (Indian Railway Personnel Service ) |
| IRSS-(Indian Railway Stores Service) |
| IRSME-(Indian Railway Service of Mechanical Engineering) |
| IRTS- (Indian Railway Traffic Service) |
| IRAS- (Indian Railway Accounts Service) |
| IRSE- (Indian Railway Service of Engineers) |
| IRSEE- ( Indian Railway Service of Electrical. Engineers) |
| IRSSE- (Indian Railway Service of Signal Engineers) |
