Mumbai International Airport’s Terminal 1 redevelopment to redefine passenger experience and sustainability by 2028

Credit: CSMIA

Mumbai International Airport Limited (MIAL) is set to transform Terminal 1 (T1) at Chhatrapati Shivaji Maharaj International Airport (CSMIA), enhancing passenger experience, sustainability, and innovation. The redevelopment will increase capacity by 42%, accommodating 20 million passengers annually. The project, spanning over two million sq. ft., will be carried out in phases to minimise disruption. The demolition of the existing structure will begin in November 2025, followed by construction of the new terminal. In the interim, CSMIA’s Terminal 2 and Navi Mumbai International Airport, opening in 2025, will manage passenger volumes, addressing growing demands in Mumbai.

Speaking on the development, Mr. Jeet Adani, Director, Adani Airport Holdings Limited said, “The team at CSMIA is working tirelessly with our stakeholders to ensure a smooth transition, with minimum 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.”

Upon completion in 2028-29, the new Terminal 1 at CSMIA will stand as a beacon of sustainable innovation, setting a global benchmark for eco-conscious airport design. T1 at CSMIA aspires to be India’s first brownfield, biophilic, sustainable airport.

Details of the Terminal 1 transformation

Passenger convenience and experience is at the core of the new CSMIA T1 design. It will include:

• Passenger terminal building (PTB) revamp: A complete overhaul of the PTB will cater to domestic operations, while allowing future integration of international services. With a capacity of 20 million passengers per annum (MPPA), this terminal will meet the growing demands of India’s burgeoning aviation market.
• Infrastructure breakthroughs: The redevelopment promises state-of-the-art infrastructure upgrades, including district cooling, cutting-edge electrical substations, and a revolutionised baggage handling system. These enhancements will elevate every facet of airport operations, both airside and landside.
• Connectivity for a new era: 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 a future-proof gateway that will redefine travel in India.
• Sustainable design at its core: Inspired by nature, the Terminal will feature biophilic design—an oasis of 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, setting a bold new benchmark for eco-conscious airports of tomorrow.