U.P. POWER CORPN. LTD. vs SANT STEELS & ALLOYS (P) LTD. .

The Supreme Court upheld the Allahabad High Court's decision striking down clauses of notifications reducing the hill development rebate from 33.33% to 17% for industrial units, citing principles of promissory estoppel under Section 49 of the Electricity (Supply) Act, 1948. The Court emphasized that the Corporation's actions were arbitrary and not permissible, affirming the entitlement of the writ petitioners to the original rebate for five years from the commencement of electricity supply. The appeals by U.P. Power Corporation Ltd. were dismissed, maintaining the High Court's directive for the rebate.