Decided in 1992 and reported (1993) 1 SCC 71, a three-judge bench located the doctrine of legitimate expectation within Article 14 non-arbitrariness — holding that such an expectation is not itself an enforceable right, but a failure to give it due weight can render a decision arbitrary.
TDSAT held the 0.5% spectrum-sharing surcharge applies only to the shared band's SUC rate, not the operator's weighted-average rate, and quashed DoT's demands.