Refund limitation and unjust enrichment: withdrawn claim treated as fresh, while excise duty refund depended on proving non-passing of burden.

A refund claim withdrawn after defects were pointed out was treated as a fresh claim, not a continuation of the original application, so limitation ran from the later filing date and the refund was barred for the earlier period. For excise-duty refund under Section 11-B of the Central Excise Act, the claimant had to prove that the duty burden had not been passed on; credit notes and post-clearance events could be relevant to rebut unjust enrichment. Applying that principle, refund was allowed for the relevant periods where non-passing of the burden was established, but denied for the time-barred portion.

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Issues: (i) Whether a refund claim withdrawn after defects were pointed out and followed by a fresh claim could be treated as a continuation of the earlier claim for limitation purposes; (ii) Whether refund of excess excise duty was barred by unjust enrichment where credit notes were issued after clearance of goods and the assessee claimed that the burden had not been passed on to customers.

Issue (i): Whether a refund claim withdrawn after defects were pointed out and followed by a fresh claim could be treated as a continuation of the earlier claim for limitation purposes.

Analysis: The earlier refund application had been made within time, but when defects were pointed out the assessee did not cure them by amendment or by producing supporting documents. Instead, it withdrew the claim and filed a fresh application. Once the earlier claim was withdrawn, it ceased to exist, and the fresh claim had to be computed independently for limitation. On that basis, the claim was time-barred for the period prior to the fresh filing date, though amounts falling within the period after that date were not barred.

Conclusion: The fresh claim was not a continuation of the earlier claim; limitation applied from the fresh filing date, and the refund was barred for the earlier period.

Issue (ii): Whether refund of excess excise duty was barred by unjust enrichment where credit notes were issued after clearance of goods and the assessee claimed that the burden had not been passed on to customers.

Analysis: Refund under Section 11-B of the Central Excise Act, 1944 is available only if the assessee establishes that the duty burden was not passed on. The burden of proving this lies on the claimant, and the presumption is that indirect tax has been passed on unless rebutted. The Court held that credit notes and post-clearance events are relevant where they show that the burden was not transferred to customers. The Tribunal's reliance on an earlier view of the CESTAT was found unsustainable in view of the later High Court decision setting it aside.

Conclusion: The assessee succeeded on unjust enrichment for the relevant periods where it established non-passing of the duty burden, and refund could not be denied on that ground.

Final Conclusion: The appeal was allowed in part. The refund claim remained barred for the earlier portion of the period, but refund was permitted for the subsequent period where the claim was within time and the duty burden was found not to have been passed on.

Ratio Decidendi: A refund claim withdrawn after objection is not a continuation of the original claim for limitation purposes, and refund of excise duty under Section 11-B is payable only to the extent the claimant proves that the duty burden was not passed on to buyers.

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