The Western Railway (abbreviated WR) is one of the 18 zones of Indian Railways, and is among the busiest railway networks in India. The major railway routes of Indian Railways which come under Western Railways are: Mumbai Central–Ratlam, Mumbai Central–Ahmedabad and Palanpur–Ahmedabad. The railway system is divided into six operating divisions: , , , , , and . Vadodara railway station, being the junction point for the Ahmedabad–Mumbai route and the Mumbai–Ratlam route towards New Delhi, is the busiest junction station in Western Railways and one of the busiest junctions of Indian Railways too, while Ahmedabad Division earns highest revenue followed by Mumbai Division and Vadodara Division. Surat railway station is one of the busiest railway station in Western Railway in non-junction category where more than 180 trains pass per day.