11. As was explained subsequently by Hon'ble Supreme Court in its
decision reported as Gujarat Urja Vikas Nigam Limited v. Solar
Semiconductor Power Company (India) Limited, (2017) 16 SCC 498, the
case of Tarini Infrastructure (supra) involved the question as to whether
tariff fixed under the PPA was sacrosanct and inviolable, beyond the
review and correction by the regulatory commission. The power producer
in that case had sought revision of tariff by the Commission primarily on
the ground of longer distance to which the power was to be evacuated
than the one envisaged in the concession agreement. In that context,
the Court had ruled to regulate the prices of sale and purchase of
electricity and to "re-determine the tariff rate".