| 1 | Central Railway (CR) | Mumbai, Maharashtra |
| 2 | Eastern Railway (ER) | Kolkata, West Bengal |
| 3 | East Central Railway (ECR) | Hajipur, Bihar |
| 4 | East Coast Railway (ECoR) | Bhubaneswar, Odisha |
| 5 | Northern Railway (NR) | New Delhi |
| 6 | North Central Railway (NCR) | Prayagraj (Allahabad), Uttar Pradesh |
| 7 | North Eastern Railway (NER) | Gorakhpur, Uttar Pradesh |
| 8 | North Western Railway (NWR) | Jaipur, Rajasthan |
| 9 | Northeast Frontier Railway (NFR) | Guwahati, Assam |
| 10 | Southern Railway (SR) | Chennai, Tamil Nadu |
| 11 | South Central Railway (SCR) | Secunderabad, Telangana |
| 12 | South Eastern Railway (SER) | Kolkata, West Bengal |
| 13 | South East Central Railway (SECR) | Bilaspur, Chhattisgarh |
| 14 | South Western Railway (SWR) | Hubballi (Hubli), Karnataka |
| 15 | Western Railway (WR) | Mumbai, Maharashtra |
| 16 | West Central Railway (WCR) | Jabalpur, Madhya Pradesh |
| 17 | East Coast Railway (ECR) | Bhubaneswar, Odisha |