“16. During the hearing, we pointedly asked but no regulation or contractual clause or, for that matter, any other provision was shown as could reflect an inhibition or prohibition against consideration of claim of change in law compensation at the stage of adoption of the tariff discovered by the bid process under Section 63 of the Electricity Act, 2003. We agree with the appellant that deferring such claim for later date creates a whole lot of confusion and, what is of utmost concern to the project developers, regulatory uncertainty and consequent difficulties in attaining financial closure. It cannot be ignored that the impact on the cost of the development of the project of such change in law events that have occurred after the submission of the bid and closure of the bid process but before the adoption of the bid discovered price renders the bid price unrealistic and in terms of Section 86 (1) (b) of the Electricity Act, it is the duty of the State Commission to inquire into such claim at the first opportune time and bring in suitable corrections, may be first by declaration and followed up by detailed tariff orders. If the event referred to actually constitutes change in law within the four corners of its definition under the PPA, there is no reason why it cannot be duly recognized as a change in law at the stage of tariff adoption, the actual impact and extent of the relief admissible to be determined at the appropriate stage”.