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Delhi International Airport Ltd vs Airport Economic Regulatory Authority of India

Civil Appeal · 2022 INSC 682Decided 11 Jul 2022
Civil Appeal No. 8378 of 2018
Sanjay Kishan Kaul · M.M. Sundresh

Background

After India privatised operation of the Delhi and Mumbai international airports in the mid-2000s (through Delhi International Airport Ltd./DIAL and Mumbai International Airport Ltd./MIAL, both paying a large annual revenue-share "Annual Fee" to the Airports Authority of India), the newly created Airport Economic Regulatory Authority (AERA) took over setting the tariffs airlines and passengers pay for aeronautical services. Disputes arose between the airport operators, airline bodies (Federation of Indian Airlines and Lufthansa), and AERA over several tariff-formula issues decided by the Telecom Disputes Settlement and Appellate Tribunal (TDSAT), including how "Project Cost" (which escalated significantly during construction) should be assessed, how a Development Fee should be treated, and, most significantly, how corporate tax ("the 'T' element") should be calculated within the revenue formula. Both the airport operators and the airlines appealed different parts of the TDSAT's rulings to the Supreme Court.

Decision Breakdown

The Supreme Court held that, since this was a "pioneering effort" in India's first public-private airport partnership, it would give AERA and the TDSAT some latitude and would not second-guess their reasonable methodology on most points, including that Project Cost overruns had been properly assessed based on certified accounts and expert audit reports, and that the Development Fee and User Development Fee were validly levied. On the one issue where the Court did intervene, it held that when calculating the "T" (corporate tax) component of the tariff formula, the Annual Fee paid by the airport operators to the Airports Authority of India should not be deducted as a cost, because the underlying State Support Agreement expressly stated the Annual Fee "shall not be included as part of costs for provision of Aeronautical Services," and treating it otherwise would effectively nullify that clause and unfairly shrink the operators' recoverable tax component. All appeals and cross-appeals were accordingly dismissed except on this narrow tax-formula point, where the impugned order was modified in the airport operators' favour.

Lesson Learnt

Courts reviewing a specialised regulator's technical, formula-based decisions (like utility or infrastructure tariff-setting) will generally defer to the regulator's reasonable expert judgment, intervening only where the regulator's interpretation contradicts the plain, express wording of the governing contract.

Official source (sci.gov.in)View Judgment (PDF)

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