Infrastructure Transition Underway

As part of long-awaited modernization efforts, the operator of Mumbai's Chhatrapati Shivaji Maharaj International Airport (CSMIA) has formally instructed major domestic carriers to formulate comprehensive transition plans. The objective is to shift international traffic equivalent to five million passengers annually to the upcoming Navi Mumbai International Airport.

In a high-level briefing with the Airline Operators Committee (AOC), Mumbai International Airport Ltd (MIAL) revealed that key carriers—including IndiGo, Air India, and Akasa Air—have already finalized outlines to move international operations accounting for roughly three million passengers per year. Airlines have been given a strict deadline of November 3 to submit actionable frameworks for the remaining volume.

Phased Redevelopment Strategy

The strategic redistribution aims to clear the path for the extensive, long-delayed redevelopment of CSMIA's Terminal 1. MIAL has proposed shifting remaining operations from Terminal 2 during the Northern Summer 2027 schedule to comfortably meet the five-million-passenger threshold.

Currently, CSMIA handles an extensive volume of approximately 55 million passengers annually. Airport authorities maintain that the temporary logistical shift will leave nearly 91 percent of existing traffic completely unaffected. Furthermore, officials project that the combined upgrades across Terminals 1 and 2 will ultimately boost the hub's overall handling capacity to 65 million passengers per year.

Addressing Safety and Delays

Highlighting the critical nature of the project, MIAL pointed to structural audit reports conducted by Structwel in 2017 and IIT Bombay in 2024. These assessments underscored the pressing necessity of the Terminal 1 overhaul, a crucial infrastructure upgrade that has faced delays spanning more than nine years.

While the sudden transition poses immediate operational adjustments for major airlines, MIAL has offered strong assurances. The operator stated that the international traffic temporarily diverted to Navi Mumbai will be welcomed back to CSMIA once the expansion of Terminal 2 reaches completion. Nevertheless, executing the broader shift hinges strictly on airlines submitting their transition blueprints in time for the upcoming summer 2027 scheduling window.