Case Note & Summary
The Supreme Court of India addressed a preliminary objection regarding the maintainability of appeals filed by the Airports Economic Regulatory Authority of India (AERA) under Section 31 of the Airports Economic Regulatory Authority of India Act, 2008 (AERA Act) against orders of the Telecom Disputes Settlement and Appellate Tribunal (TDSAT). The respondents, including Delhi International Airport Ltd., argued that AERA, being a quasi-judicial body, could not appeal its own decisions. The Court examined the statutory framework, noting that AERA's primary function is tariff determination for aeronautical services, which involves regulatory and policy considerations rather than adjudication of disputes between parties. The Court distinguished between regulatory and adjudicatory functions, holding that tariff determination is a regulatory function. It further interpreted Sections 18 and 31 of the AERA Act, concluding that Section 31 is a special provision allowing AERA to appeal against TDSAT orders on questions of law. The Court also discussed the doctrine of necessary and proper parties, stating that AERA has a legitimate interest in defending its orders and ensuring correct interpretation of the Act. Consequently, the Court overruled the preliminary objection and held that the appeals are maintainable.
Headnote
A) Regulatory Law - Maintainability of Appeal - Section 31 of the Airports Economic Regulatory Authority of India Act, 2008 - AERA, as a regulatory authority, can file an appeal under Section 31 against orders of TDSAT, as tariff determination is a regulatory function, not an adjudicatory one. The court held that authorities exercising adjudicatory functions cannot defend their orders in appeal, but AERA's function of tariff determination is regulatory, and thus it is entitled to appeal. (Paras 1-53) B) Regulatory Law - Quasi-Judicial Functions - Test for Determining Adjudicatory Function - The test for determining whether a function is adjudicatory is whether the authority resolves a lis between parties by applying law to facts. Tariff determination by AERA involves policy considerations and public interest, not adjudication of disputes, and is therefore regulatory. (Paras 29-43) C) Regulatory Law - Necessary and Proper Parties - In regulatory proceedings, the regulator is a necessary and proper party in appeals against its decisions, as it has a stake in upholding its orders and ensuring correct interpretation of the statute. (Paras 21-28) D) Regulatory Law - Interpretation of Sections 18 and 31 of AERA Act - Section 18 provides for appeals by parties to the dispute, while Section 31 provides for appeals by AERA. The two provisions operate in different spheres; Section 31 is a special provision allowing AERA to appeal against TDSAT orders on questions of law. (Paras 49-53)
Issue of Consideration
Whether appeals filed by AERA under Section 31 of the AERA Act against orders of TDSAT are maintainable, given that AERA is a quasi-judicial body performing adjudicatory functions.
Final Decision
The Supreme Court overruled the preliminary objection and held that the appeals filed by AERA under Section 31 of the AERA Act are maintainable. The Court directed that the appeals be listed for hearing on merits.
Law Points
- Maintainability of appeal by regulatory authority
- Distinction between regulatory and adjudicatory functions
- Interpretation of Section 31 of AERA Act
- Doctrine of necessary and proper parties
- Quasi-judicial functions test




