The Indian Railways is divided in 18 zones which are: Central Railway (CR), Northern Railway (NR), North Eastern Railway (NER), Northeast Frontier Railway (NFR), Eastern Railway (ER), South Eastern Railway (SER), South Central Railway (SCR), Southern Railway (SR), Western Railway (WR), South Western Railway (SWR), North Western Railway (NWR), West Central Railway (WCR), North Central Railway (NCR), South East Central Railway (SECR), East Coast Railway (ECoR), East Central Railway (ECR), Metro Railway (MTP), and South Coast Railway (SCoR).