Mumbai’s airport operator Adani Airports says redevelopment of the north section of Terminal 1B at Chhatrapati Shivaji Maharaj International Airport will begin in January 2027. The project is expected to increase Terminal 1B’s capacity by about 33%, raising it to roughly 20 million passengers per annum (mppa) from around 15 mppa.

Adani Airports indicates that the work will require shifting some operations during the transition. It says approximately five million passengers per year—about 9% of the airport’s nearly 55 million annual passenger traffic—will be temporarily deoperationalised due to the redevelopment. NDTV and Business Line both cite this passenger impact figure.

Across outlets, the key emphasis is on logistics and continuity of service. Adani Airports states it will support airlines through the migration of services and provide necessary assistance to help ensure a smooth transition, with some flights potentially redirected to facilities outside the Mumbai airport area, including Navi Mumbai.