The Mithi River is a river on Salsette Island, the island of the city of Mumbai, India. It is a confluence of tail-water discharges of the Powai and Vihar lakes. The river is seasonal and rises during the monsoons. From Wikipedia
The 9.77 km underground stretch connects Bandra-Kurla Complex to Acharya Atre Chowk, with 26,758 commuters on its opening day.
