17 zonal railways exists in indian railways. Latest one is kolkata metro.
Northern Railway.
the pride of housing the head ouarter of three indian railways zones
The station with the smallest name on Indian Railways is Ib in Orissa state on the Nagpur Howrah line on South Central Railways. It is located between Brijrajnagar and Jharsuguda railway stations.Also, there is station named Od, on the Anand-Godhra section of Western Railways.
North Eastern.
Northern railway
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There are 17 railway jones in india now...... it is right.... you can watch it in www.iloveindia.com
jaipur
The Cetral Railway zone is located in the state of Maharashtra, India. It is the largest of all of the Indian Railway zones and its headquarters is located in Mumbai.
there are `16 zones in India.
Kolkata Metro is first underground railway in India. It was the first such form of transport in India, opening for commercial services in 1984. It is the 17th zone of the Indian Railways system.Source - TravelKhana.com
Central Railway Zone was created in 1951.