Railway Zones:
Central Railway: Mumbai
Southern Railway: Chennai
Northern Railway: Delhi
Eastern Railway: Kolkata
Western Railway: Mumbai
North Eastern: Gorakhpur
South Eastern: Kolkata
South Central: Secundarabad
Northeast Frontier: Guwahati
East Central: Hajipur
North Western: Jaipur
East Coast: Bhubaneswar
North Central: Allhabad
South East Central: Bilaspur
South Western: Hubli
West Central: Jabalpur
Kolkat Metro: Kolkata
