In March 2026, the US Department of Transportation (DOT) sent a formal letter to India's aviation ministry, arguing that Adani Airport Holdings Ltd.'s directive to relocate freighters—including FedEx Corp.—from Chhatrapati Shivaji Maharaj International Airport to the new Navi Mumbai International Airport violates the bilateral US-India Air Transport Agreement. The DOT warned that forcing American carriers to relocate could prompt it to consider adverse measures under the treaty. FedEx, currently the only American cargo airline operating out of Mumbai's main airport, approached the DOT after concerns that moving away from the centrally located airport could affect access to prime operating slots—rights protected under the bilateral air services pact.
The relocation directive stems from infrastructure works at CSMIA scheduled from August 2026 to May 2027, which include the operationalization of Taxiway-E and rapid exit taxiways. Adani Airport states this will temporarily impact nearly 25% of cargo handling capacity, necessitating a "phased and limited realignment of select international freighter operations to Navi Mumbai." However, US officials view the relocation push as effectively serving to populate the new airport—which began commercial operations in December 2025—rather than being a neutral operational decision.
The standoff comes at a particularly sensitive moment. It risks injecting fresh tension into US-India ties just months after the two sides concluded a hard-fought trade deal. On February 2, 2026, President Trump and Prime Minister Modi announced a historic trade framework that included reducing US reciprocal tariffs to 18% from 25%, with India committing to purchase $500 billion of US products over five years, including aircraft and aircraft parts. This agreement was intended to reset bilateral relations after a year-long deterioration in 2025, when various irritants had jeopardized nearly two decades of deepening US-India strategic ties.
The cargo dispute emerges as India seeks closer US ties for capital, technology, and strategic cooperation in areas like critical minerals, AI, nuclear energy, and defense innovation. Sources indicate the issue "has the potential to snowball into a diplomatic problem," with the Indian government having written to Adani seeking an amicable solution. The DOT has a history of enforcement actions against India for perceived aviation treaty violations, including a 2019 dispute over ground handling restrictions that led to formal consultations and bureaucratic measures against Air India.
The dispute unfolds against the backdrop of ongoing US legal proceedings against Gautam Adani. In November 2024, the US Securities and Exchange Commission filed a fraud case alongside a criminal complaint by the Department of Justice, alleging that the Adanis orchestrated a bribery scheme exceeding $250 million to secure solar energy contracts in India and misled US investors during a $750 million bond issuance by Adani Green Energy in 2021. A US judge has granted Adani's request for a pre-motion conference to argue for dismissal, with a formal motion expected by April 30, 2026.
The Adani Group strongly denies all allegations, maintaining that none of its entities or executives have been charged under the US Foreign Corrupt Practices Act and that Adani Green Energy is not a party to the proceedings. India's Law Ministry has refused to serve US SEC summons, citing the Hague Service Convention and arguing that foreign regulators cannot bypass Indian courts or legal procedures. However, the ongoing probe has substantially impacted Adani Group's credibility with international regulators and partners, creating heightened scrutiny of operational decisions and raising questions about governance and regulatory compliance.
Adani Group's control of both Mumbai airports—holding a 73% stake in CSMIA and 74% in NMIA through its MIAL stake—creates unique market influence. The group is India's largest airports operator in the private sector, with a portfolio of eight airports across seven cities and plans to invest $11-15 billion to bid for a dozen more terminals by 2030. This expansion strategy has raised concerns about monopolistic practices, with academic research identifying the emergence of such practices by private operators controlling multiple airports as a primary concern in India's airport privatization.
The dual ownership enables Adani Airport Holdings to exercise significant influence over traffic allocation through cross-airport management, coordinated pricing strategies, and slot allocation decisions across the Mumbai metropolitan region. While this offers competitive advantages including revenue retention and capacity optimization, it also exposes the group to regulatory scrutiny, carrier resistance, and reputational risks. The "profit mafia" controversy at NMIA involving telecom infrastructure arrangements, where the airport operator was accused of denying telecom operators statutory Right of Way and forcing use of airport-owned network at exorbitant charges, demonstrates potential for similar disputes in cargo and other airport services.
The Indian aviation ministry faces a complex balancing act in seeking an amicable solution. It must protect Adani Group's legitimate operational needs for infrastructure development while upholding bilateral aviation agreements and foreign carrier interests. The ministry has several leverage points in negotiations, including regulatory authority over slot allocations and traffic rights, coordination with the Airports Economic Regulatory Authority of India (AERA) on tariff structures, and the mandate provided by the National Civil Aviation Policy 2016 to promote air cargo growth.
Potential resolution approaches include implementing a phased transition rather than an abrupt directive, establishing formal consultation mechanisms with foreign carriers and the US DOT, conducting thorough legal reviews of the relocation directive against treaty provisions, and exploring options to expedite CSMIA infrastructure works to minimize disruption. The ministry must also consider that Adani's airports business is preparing for an IPO by FY2028, making successful resolution of this dispute critical for the unit's valuation and investor reception.
The resolution of this dispute will have significant implications beyond immediate operational concerns. For US-India aviation relations, it will establish a precedent for handling future disputes under bilateral agreements. For Adani Group's international operations, the outcome will affect credibility and reception of operational decisions by global regulators and partners. For India's aviation infrastructure development, it will serve as a model for balancing private sector participation with international obligations.
The broader US-India strategic partnership, encompassing trade, defense, and technology cooperation, could be impacted by how this commercial dispute is managed. As India navigates the complex intersection of domestic infrastructure champions, international regulatory frameworks, and strategic partnership commitments, the cargo relocation dispute represents a critical test of the bilateral relationship's resilience and maturity. With the DOT threatening adverse measures under the treaty and the Indian government seeking an amicable solution, both sides face pressure to resolve the dispute without undermining broader cooperation or triggering escalation that could damage the recently reset partnership.
