The City and Industrial Development Corporation (CIDCO) has nearly completed the detailed project report (DPR) for Airport Express Line Metro. This metro corridor aims to connect Navi Mumbai International Airport (NMIA) with Chhatrapati Shivaji Maharaj International Airport (CSMIA), enhancing connectivity between two major airports in Mumbai. 

Spanning 34 km, the line features 25.8 km of elevated tracks and an 8.2 km underground section, with 20 stations - 14 elevated and six underground. By 2061, the metro is expected to cater to 22.7 lakh daily passengers, managing a peak hour peak direction traffic (PHPDT) of 37,000 commuters. Designed to improve east-west connectivity, the metro will seamlessly integrate with Mumbai’s existing metro and suburban rail networks, along with key bus terminals. This connectivity aims to improve access to economic zones, institutional areas, and emerging commercial hubs across the Mumbai Metropolitan Region (MMR).

The project, with an estimated cost of Rs 15,000 crore, is a joint venture (JV) between CIDCO and the Mumbai Metropolitan Region Development Authority (MMRDA). MMRDA, in partnership with Delhi Metro Rail Corporation (DMRC), will oversee the construction of the 11.1-km stretch from CSMIA to Mankhurd, while CIDCO will manage the extension from Mankhurd to NMIA.