1. | Central | CR | Mumbai | Mumbai, Bhusawal, Pune, Solapur, Nagpur |
2. | East Central | ECR | Hajipur | Danapur, Dhanbad, Mughalsarai, Samastipur, Sonpur |
3. | East Coast | ECoR | Bhubaneswar | Khurda Road, Sambalpur, Visakhapatnam |
4. | Eastern | ER | Kolkata | Howrah, Sealdah, Asansol, Malda |
5. | North Central | NCR | Allahabad | Allahabad, Agra, Jhansi |
6. | North Eastern | NER | Gorakhpur | Izzatnagar, Lucknow, Varanasi |
7. | North Western | NWR | Jaipur | Jaipur, Ajmer, Bikaner, Jodhpur |
8. | Northeast Frontier | NFR | Guwahati | Alipurduar, Katihar, Lumding, Rangia, Tinsukia |
9. | Northern | NR | Delhi | Delhi, Ambala, Firozpur, Lucknow, Moradabad |
10. | South Central | SCR | Secunderabad | Secunderabad, Hyderabad, Guntakal, Guntur, Nanded, Vijayawada |
11. | South East Central | SECR | Bilaspur | Bilaspur, Raipur, Nagpur |
12. | South Eastern | SER | Kolkata | Adra, Chakradharpur, Kharagpur, Ranchi |
13. | South Western | SWR | Hubli | Hubli, Bangalore, Mysore |
14. | Southern | SR | Chennai | Chennai, Madurai, Palakkad, Salem, Tiruchchirapalli, Thiruvanathapuram |
15. | West Central | WCR | Jabalpur | Jabalpur, Bhopal, Kota |
16. | Western | WR | Mumbai | Mumbai Central, Ratlam, Ahmedabad, Rajkot, Bhavnagar, Vadodara |