and fauna. Mumbai Metro Line 4 (Upcoming) Green Line 4 of the Mumbai Metro, currently under construction, is part of the metro system for the city of Mumbai, India and is being developed by MMRDA and a consortium of international companies. The line is planned to be fully elevated, and is expected to consist of 32 stations from Wadala, Mumbai to Kasarvadavali via Ghatkopar, Mulund. It is estimated to cost (). Its construction was expected to begin by June 2018. It is expected to be completed in 2022 and is expected to provide interconnectivity among the existing Eastern Express Highway, Central Railway, Mono Rail, the ongoing Metro Line 2B (D N Nagar to Mandale), and the proposed Metro Line 5 (Thane to Kalyan), Metro Line 6 (Swami Samarth Nagar to Vikhroli) and Metro Line 11 (Wadala to CSMT). It will provide rail based access to the commercial, government bodies and geographical landmarks in Mumbai. It will reduce the current travel time by between 50% and 75% depending on road conditions. Major junctions The following roads either emanate from it or are crossed by it. This list has been separated by district and talukas for easy reading. Gallery See also List of State Highways in Maharashtra References Transport in Thane State Highways in Maharashtra