Case Note & Summary
The dispute involved applications filed by Delhi International Airport Limited (DIAL) and Mumbai International Airport Limited (MIAL) concerning the calculation of the Hypothetical Regulatory Asset Base (HRAB) based on a newly discovered piece of evidence. The applicants referred to a letter dated 24.05.2011 from the Ministry of Civil Aviation (MoCA) to the Airports Economic Regulatory Authority (AERA), which they claimed indicated an error in the previous judgment regarding HRAB calculation. The court noted that the previous judgment had established that the two airports were not newly established but taken over, affecting asset depreciation and the calculation of the Regulatory Base. The applicants contended that the HRAB should be computed using a 'single till' mechanism, which had not been addressed in the earlier judgment or by the Telecom Disputes Settlement and Appellate Tribunal (TDSAT). The court acknowledged the significance of the new evidence and the need for TDSAT to reassess the HRAB calculation, particularly regarding the 'single till' mechanism. The court ultimately decided to remit the matter to TDSAT for a fresh examination of the HRAB computation in light of the new evidence, allowing the affected parties to seek remedies if necessary. The applications were disposed of accordingly.
Headnote
A) Administrative Law - Regulatory Asset Base Calculation - New Evidence Consideration - Airports Economic Regulatory Authority Act, 2008 - The court directed TDSAT to examine the impact of a letter dated 24.05.2011 on the computation of HRAB, recognizing the need for independent assessment of the 'single till' mechanism in light of the new evidence. Held that the TDSAT should consider the implications of the letter for HRAB calculation (Paras 14-15).
Issue of Consideration
Whether the new evidence regarding the calculation of the Hypothetical Regulatory Asset Base (HRAB) warrants a modification of the previous judgment or remittance to TDSAT.
Final Decision
The court directed TDSAT to examine the effect of the letter dated 24.05.2011 on the computation of HRAB and whether the single till mechanism should be the basis for this computation.
Law Points
- Regulatory Asset Base
- Single Till Mechanism
- Jurisdiction of TDSAT
- Internal Communication Evidence



