Central Government started this railway project in March 1990 and it was constructed and completed by Konkan Railway Nigam Ltd. on January 26, 1998. It is the biggest railway project in peninsular India. Under this, a 750 km long railway line connects Roha station in Maharashtra in the west coast to Mangalore station in Karnataka. There are 2000 bridges (including 179 big . bridges) and 91 tunnels on the way. One tunnel in Ratnagiri district in Maharastra is 6.5 km long, and over the river Sharavati, there is a 2065.8 m long bridge.