Refund of excise duty requires timely application and proof that the duty burden was not passed on.

Refund of excess Modvat credit under Section 11B of the Central Excise Act requires a claim within six months from the relevant date and proof that the duty burden was not passed on. The claimant bears the burden of producing supporting documentary evidence to establish payment of duty and absence of unjust enrichment. If these statutory conditions are not satisfied, the refund is barred by limitation and by the evidentiary requirement under Section 11B, and the claim is liable to be rejected. Any later notification concerning reversal of Modvat credit can operate only after compliance with these threshold requirements.

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Issues: Whether the assessee's claim for refund of excess Modvat credit was maintainable under Section 11B of the Central Excise Act, 1944 and whether it was barred for failure to establish that the incidence of duty had not been passed on within the prescribed time.

Analysis: Refund of duty under Section 11B requires an application within six months from the relevant date and supporting evidence showing that the duty was paid by the claimant and that its incidence was not passed on to any other person. The burden to satisfy these conditions lies on the claimant. Only after such compliance can the benefit of the later notification concerning reversal of Modvat credit arise. On the facts found by the authorities, the assessee did not produce the necessary documentary evidence within time to establish absence of passing on of duty incidence, and the claim was therefore hit by limitation and by the statutory requirement of proof. In those circumstances, the authorities were justified in rejecting the refund claim.

Conclusion: The refund claim was not maintainable under Section 11B and was rightly rejected.

Ratio Decidendi: A refund of excise duty can be granted only if the claimant applies within the statutory period and proves that the incidence of duty has not been passed on; failing that, the refund claim is liable to be rejected and the doctrine of unjust enrichment applies.

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