The parties involved in the project include: Phase I began in 2002 and was completed in 2011.
[1] The total estimated cost of the MUTP Phase I was ₹4,526 crore (US$520 million).
[3] Railway Minister Dinesh Trivedi announced in 2012 that Phase I was completed.
[6] The project includes a fast corridor from Chhatrapati Shivaji Terminus to Panvel with a connection to the proposed new Navi Mumbai International Airport, extending the Harbour Line to Borivali, and multiple additional tracks being laid on existing routes.
It will cost ₹33,690 crore (US$3.9 billion) shared equally by the Union and State Governments, and is scheduled to be completed within 5 years.