Mumbai Airport Redevelopment Plan
Mumbai Airport announces major Terminal 1 redevelopment, temporarily affecting nine percent of traffic.
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Key Points
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The airport operator said consultations with airlines on Terminal 1’s future had been underway since 2020, and the redevelopment proposal was presented to India’s airport regulator, AERA, and incorporated into the approved tariff framework.
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The North Section of Terminal 1B targeted in the first phase accounts for roughly one-third of Terminal 1’s capacity.
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The separate proposal to move international services would shift one-third of international flights to Navi Mumbai from October 26; airlines have opposed the plan as a forced relocation.
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Industry sources described the redevelopment as including upgraded airside access, advanced baggage-handling systems and inter-terminal transit links, though details on affected flights and the operational timeline had not yet been disclosed.
Adani Airports plans to begin a major overhaul of Mumbai Airport's nearly 60-year-old Terminal 1 in January 2027, starting with demolition of the North Section of Terminal 1B over safety concerns DevDiscourse. The first phase will temporarily disrupt about 5 million passengers annually — roughly 9% of the airport's total traffic — while 91% continues normal operations MoneyControl.
The redevelopment aims to boost Terminal 1's annual capacity from 15 million to 20 million passengers through upgraded systems and improved facilities RepublicWorld. Airlines using the affected section may shift operations temporarily to Navi Mumbai International Airport, though the operator insists this will not be a permanent relocation of traffic from Mumbai RepublicWorld.
Why Terminal 1B Needs Demolition Now
Terminal 1B, built nearly 60 years ago, faces serious safety concerns that triggered the redevelopment decision DevDiscourse. The North Section targeted in phase one represents roughly one-third of Terminal 1's total capacity, making it a significant portion of the terminal MoneyControl. Adani has been consulting airlines on Terminal 1's future since 2020 and won approval from India's airport regulator, AERA, to incorporate the plan into the tariff framework MoneyControl.
What Happens to the 5 Million Affected Passengers
During phase one, roughly 5 million passengers yearly will face temporary disruptions — about 9% of Mumbai Airport's current traffic DevDiscourse. Airlines operating from the affected North Section may temporarily move services to Navi Mumbai International Airport during construction RepublicWorld. The operator emphasized this temporary shift is not a permanent transfer of Mumbai airport traffic to the newer facility RepublicWorld.
Industry Sources Detail Upgraded Features Coming
The redevelopment project includes upgraded airside access, advanced baggage-handling systems, and inter-terminal transit links OmmComNews. These improvements will modernize the aging infrastructure and increase operational efficiency across Terminal 1. However, Adani has not yet disclosed which specific flights will be affected or the complete operational timeline for the project MoneyControl.
Airlines Push Back on Separate Flight Relocation Plan
Beyond the Terminal 1B redevelopment, a separate proposal would shift one-third of international flights to Navi Mumbai starting October 26 MoneyControl. Airlines have strongly resisted this plan, describing it as a forced relocation rather than a voluntary adjustment MoneyControl. The dispute remains unresolved as the terminal renovation moves forward independently.
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