“99. Therefore, in all those thermal power projects where there was requirement of only space provision, it is difficult to accept the contention of the Respondents that in spite of absence of specification and design for FGD, the Appellants were still required to estimate the cost and earmark funds anticipating revised norms after six years or so from the cut-off date. To substantiate their contention, Respondent No.2 submits that some thermal plants did install the FGD system, therefore FGD system was available in the market. It is nobody’s case that FGD was not available in the market. Depending upon the requirement in terms of conditions of ECrecommended by relevant authority some thermal plants like JSW, Adani etc., might have installed FGD system. But one has to see what were the existing norms, conditions imposed in EC or other allied documents before notification in question and not the availability of FGD system in the market. As already stated, anticipating such change, substantial cost cannot be included as capital cost of the project at the time of bidding itself. If such requirement of FGD did not occur during the entire term of the Project, the consumer would be burdened with higher tariff. As a matter of fact, such substantial and significant cost as part of capital cost of the project would not have been approved at all.”