Case Note & Summary
The case involved appeals against a common judgment of the Madras High Court concerning tariff concessions under the Tamil Nadu Revision of Tariff Rates on Supply of Electrical Energy Act, 1978. The appellants, M/s. Kothari Industrial Corporation Ltd., established new industries reliant on electricity and were attracted by the promised tariff concessions for the first five years of production. However, a notification issued by the respondents in 1982 revised the tariff conditions, stating that concessions would cease once the industry began earning profits. The appellants contended that they had incurred losses despite showing a net profit for tax purposes and were subsequently served a notice for payment to avoid disconnection of power supply. They invoked the doctrine of promissory estoppel and legitimate expectation based on previous Supreme Court decisions. Conversely, the respondents argued that legislative amendments to the tariff conditions were valid and that the appellants were estopped from challenging the conditions due to their undertaking. The court identified a divergence in judicial opinions regarding the applicability of promissory estoppel and the effect of the undertaking, leading to the decision to refer the matter to a larger bench for clarification. The court directed that the case papers be submitted for the constitution of a larger bench to address these critical legal issues.
Headnote
A) Administrative Law - Promissory Estoppel - Applicability of Promissory Estoppel - Tamil Nadu Electricity Board Act, 1978, Section 4 - The court considered the applicability of the principles of promissory estoppel and legitimate expectation in the context of tariff concessions provided to new industries. It noted the need for a larger bench to resolve differences in judicial interpretation on this issue. Held that the matter requires further examination by a larger bench (Paras 7-8).
Issue of Consideration
Whether the principles of promissory estoppel and legitimate expectation are applicable in this case, and whether the undertaking given by the appellants acts as an estoppel against them.
Final Decision
The Supreme Court decided to refer the matter to a larger bench to resolve the conflicting judicial interpretations regarding the applicability of promissory estoppel and the effect of the undertaking given by the appellants.
Law Points
- promissory estoppel
- legitimate expectation
- tariff concessions
- legislative act
- estoppel against statute


