Full Judgment
2. Shri Arulsamy, the learned DR, submitted that the Tribunal being a creature of statute cannot traverse beyonds the confines of law and it is now fairly settled by the Supreme Court that Section 11B of the CESA as amended incorporating the principle of the applicability of the doctrine of unjust enrichment is operative retrospectively. The learned DR submitted that since the appellants have not established legally that the incidence of the tax has not been passed on to the consumers; even if they are otherwise eligible to the grant of refund in law the amount cannot be sanctioned to them in the light of the existing amended Section 11B.3. We have considered the submissions made before us. As rightly contended by the learned DR, the Tribunal being a creature of statute will have to function within the four corners of the law and cannot traverse beyond the confines of law even if justice of a situation warrants it. This position is no longer res Integra and is covered by the authoritative pronouncement of the Supreme Court in the case of Miles India Ltd. v. Asstt. C.C. reported in 1985 ECR 289 (SC) : ECR C 750 SC : ECR C Cus. 1094 SC : 1987 (30) ELT 641. Be that as it may, being a statutory Tribunal, we have no jurisdiction to go into the vires of a particular Section or enactment much less on its constitutional validity. Section 11B was amended on 20.9.1991 and it is now well settled that the amended Section is operative retrospectively in respect of the pending refund claims. Therefore, in the above cases, inasmuch as the refund amount has not been actually given to the appellants; unless the appellants prove that they had not passed on the incidence of taxation to the consumers, they would not be eligible to the grant of the same in the light of Section 11B of the Act as amended. We take note of the fact that appellants' have also moved the High Court by way of a writ questioning the vires of amended Section 11B of the Act relating to the applicability of the doctrine of unjust enrichment and it would be open to the appellants to take recourse by way of writ before the High Court if they so desire in the above appeals as well. In this view of the matter, the appeals axe dismissed.