Government of India Ministry of Railways

Central Railway (CR) is one of the oldest and largest zones of Indian Railways headquartered at Chhatrapati Shivaji Maharaj Terminus (CSMT) in Mumbai.

East Central Railway (ECR) is one of the zones of Indian Railways headquartered in Hajipur, Bihar. Formed in 2002, it primarily serves the eastern region of India, covering most of Bihar and parts of Jharkhand, Uttar Pradesh and Madhya Pradesh.

East Coast Railway (ECoR) is one of the zones of Indian Railways headquartered in Bhubaneswar, Odisha. It was established in 2003 and primarily covers the states of Odisha, parts of Andhra Pradesh and Chhattisgarh.

Eastern Railway (ER) is one of the oldest zones of Indian Railways, with its headquarters at Fairlie Place, Kolkata, West Bengal. It was formed in 1952 and primarily serves West Bengal, along with parts of Jharkhand and Bihar.

Kolkata Metro is India’s first underground metro railway, operational since 1984, and is managed by Metro Railway, Kolkata, a zone under Indian Railways.

North Central Railway (NCR) is a prominent zone of Indian Railways headquartered at Prayagraj (Allahabad), Uttar Pradesh. Established in 2003, it primarily covers parts of Uttar Pradesh, Madhya Pradesh, Rajasthan and Haryana.

North Eastern Railway (NER) is one of the zones of Indian Railways, headquartered in Gorakhpur, Uttar Pradesh. Established in 1952, it primarily serves the northeastern part of Uttar Pradesh, western Bihar and parts of Uttarakhand.

North East Frontier Railway (NFR) is one of the 18 railway zones in India under Indian Railways. Headquartered in Maligaon, Guwahati (Assam), NFR primarily serves the northeastern states of India including Assam, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura and parts of West Bengal and Bihar.

Northern Railway is one of the largest zones of Indian Railways, headquartered in New Delhi. Established in 1952, it operates across several key states including Delhi, Punjab, Haryana, Uttar Pradesh, Uttarakhand, Himachal Pradesh and parts of Jammu & Kashmir.

North Western Railway (NWR) is one of the 18 zones of Indian Railways, established on October 1, 2002. Headquartered in Jaipur, Rajasthan, it was formed by integrating two divisions each from the former Northern and Western Railways: Ajmer and Jaipur from Western Railway, and Bikaner and Jodhpur from Northern Railway.