The Aqua Line 3 of the Mumbai Metro, also known as Colaba-Bandra-Seepz Line, is currently under construction in Mumbai, India. When completed, the 33.5-km long line will be the first underground metro line in Mumbai, with 27 underground stations and one at-grade station. The line will run from Navy Nagar in the far-south of Mumbai to Aarey Depot in the north-centre, and will include connections to other metro lines, monorail, suburban rail, inter-city rail, and Mumbai Airport. Line 3 is expected to reduce road congestion, and to reduce the load on the Western Line between Bandra and Churchgate.