Brihanmumbai Municipal Corporation (BMC) has floated tender for Phase 3 of the Mithi River Rejuvenation project. 

This phase includes the widening and deepening of the remaining 300 meters of the river, the construction of a protective wall, a promenade, and flood control gates. 

The estimated cost for the project is Rs 2,394 crore. However, clearing encroachments along the river will be a challenge for the BMC.
The plan for the widening, deepening, beautification and pollution control of the Mithi River is divided into four phases. 

Phase 3 of the project involves intercepting sewage from 26 outfalls in the Mithi and Vakola rivers and redirecting it to the main sewer system through an 8,343-meter sewage line along the riverbanks.

It also includes widening and deepening 300 meters of the river, constructing a 6,780-meter protective wall, a 6,421-meter service road, an 8,850-meter promenade, and flood control gates with drainage systems at 25 outfalls, along with other allied works extending from CST Road, Kurla, to Mahim Causeway