 The branch from Rewari to Bhatinda and Fazilka was begun in 1881 by the Ferozepore & Rewari Railway, but the section between Bhatinda and Ferozepore was subsequently built to the broad-gauge and passed to the GIPR.The Colaba-Borivali section (37.8 km) was electrified on 5 January 1928 on the 1.5 kV DC system.The two tracks between Colaba and Grant Road stations were electrified, while four tracks between Grant Road and Bandra railway stations were electrified.