Indian Railways

Zonal Railways

?	Central Railway	?	Western Railway
?	Eastern Railway	?	South East Central Railway
?	Northern Railway	?	East Coast Railway
?	North Eastern Railway	?	North Central Railway
?	North East Frontier Railway	?	North Western Railway
?	Southern Railway	?	South Western Railway
?	South Central Railway	?	West Central Railway
?	South Eastern Railway	?	East Central Railway