<h1>Final 10.99-km Phase 2B opens, completing 33.5-km fully underground Metro Line 3 with 11 new stations</h1> A fully underground 33.5-km metro corridor will become fully operational with the inauguration of a 10.99-km final stretch (Phase 2B) adding 11 stations, completing Metro Line 3 and linking south Mumbai to northern suburbs and multiple business, administrative and cultural hubs. Phase 2B cost about Rs 12,195 crore; the entire Aqua Line cost over Rs 37,270 crore and was co-funded by the central government and an international agency. The line integrates with suburban rail at key stations, is projected to serve about 1.3 million daily commuters, cut suburban rail load and fuel use, involved large-scale rehabilitation and compensatory plantations, and coincides with launch of an integrated mobility app and a new airport.