The new terminal is scheduled for completion in 2028-29. Phase 1 of the construction work will begin in November 2025

Mumbai International Airport Limited (MIAL), operator of Chhatrapati Shivaji Maharaj International Airport (CSMIA), is set to embark on a landmark transformation with the redevelopment of Terminal 1 (T1). According to MIAL, this will redefine passenger experience and set an unprecedented standard in sustainability and innovation. Once complete, the new terminal will be able to manage 20 million passengers annually, a 42% boost in capacity, reflecting the dynamic growth of Mumbai. With a built-up area of over two million sq ft, it is intended to set a new standard in digitisation and consumer convenience.

The redevelopment of Terminal 1 will be carried out in phases to minimise disruption to airport operations. The initial phase – kicking off in November 2025 – involves the demolition of the existing structure, followed by construction of the new terminal.

CSMIA T2, along with Navi Mumbai International Airport, scheduled to be operational in 2025, will manage the capacity gap created by the demolition of T1. Together, the airports will accommodate passengers and flight schedules to meet the growing demands of both Mumbai City and the Mumbai Metropolitan Region (MMR).

Jeet Adani, director of operator Adani Airport Holdings, said of the development: “The team at CSMIA is working tirelessly with our stakeholders to ensure a smooth transition, with mini-mum disruption to daily operations or passenger experience. This redevelopment is not only about expanding capacity – it is about future proofing our city’s place on the global stage. Our priority remains to deliver the exceptional service that our passengers have come to expect.”

T1 at CSMIA aspires to be India’s first brownfield, biophilic, sustainable airport. The redevelopment will involve state-of-the-art infrastructure upgrades, including district cooling, cutting-edge electrical substations, and a modern baggage handling system. The multi-modal transit hub (MMTH) will be the nexus of Mumbai’s air, rail and road networks. Passengers will be able to experience seamless connectivity – from direct metro access to underground bus stations – creating what MIAL has described as a future-proof gateway that will redefine travel in India.

Inspired by nature, the Terminal will feature biophilic design – indoor greenery, natural light and open spaces designed to uplift and energise travellers. Drawing inspiration from the fluid motion of the ocean waves, its architecture will incorporate futuristic, wave-inspired forms.

During the construction, Terminal 2 (T2) will shoulder the additional traffic. Advanced technologies such as DigiYatra, self-baggage drop, and e-Gates will ensure smooth passenger movement despite the increased footfall. Additional service staff will be deployed at key locations to assist passengers during peak travel periods. Airlines and other stakeholders will be informed well in advance to ensure uninterrupted flight schedules.