Provisional assessment refunds and Modvat credit claims are not defeated by unjust enrichment when substantive entitlement is established.

Refund arising from finalisation of provisional assessment under Rule 9B was treated as outside the ordinary Section 11B refund regime, so unjust enrichment did not bar the claim. The Court held that duty adjusted on finalisation of a provisional assessment remains consequential to that process and does not become a fresh refund claim requiring separate proof of non-passing of burden. It also held that Modvat-related credit and differential duty claims on duty-paid inputs could not be rejected merely on unjust enrichment or an alleged procedural lapse where the foundational facts of duty-paid receipt and use in manufacture were established. The assessee obtained complete relief, with refund directed to be returned with interest.

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Issues: (i) Whether refund arising from finalisation of provisional assessment under Rule 9B was barred by unjust enrichment and the refund provisions of the Central Excise law. (ii) Whether the claim relating to Modvat credit and differential duty on input value could be denied on the ground of unjust enrichment and alleged procedural deficiency.

Issue (i): Whether refund arising from finalisation of provisional assessment under Rule 9B was barred by unjust enrichment and the refund provisions of the Central Excise law.

Analysis: The assessment for the relevant period was provisional and the duty paid under protest stood adjusted only upon finalisation of the classification dispute. Refunds or recoveries consequential to adjustment under Rule 9B(5) were held to stand outside the ordinary refund regime under Section 11B. The doctrine of unjust enrichment was treated as inapplicable to such a refund flowing directly from finalisation of provisional assessment. The fact that the duty had been paid during provisional assessment did not convert the claim into a fresh refund claim requiring proof that the burden had not been passed on.

Conclusion: The refund claim was not hit by unjust enrichment and was payable to the assessee.

Issue (ii): Whether the claim relating to Modvat credit and differential duty on input value could be denied on the ground of unjust enrichment and alleged procedural deficiency.

Analysis: The record showed receipt of duty-paid input material used in manufacture, and the denial of credit was not sustained merely because of a later stand taken as to the real manufacturer. The Court treated the claim as supported by the underlying duty-paid inputs and found no basis to reject it on the ground of unjust enrichment. The alleged procedural lapse was not accepted as sufficient to defeat the substantive entitlement on the facts found.

Conclusion: The assessee was entitled to the Modvat-related refund claim as well.

Final Conclusion: The petition succeeded and the refund claim was directed to be returned with interest, the assessee obtaining complete relief.

Ratio Decidendi: Refund arising directly from finalisation of provisional assessment under Rule 9B is not governed by the ordinary refund bar of unjust enrichment under Section 11B, and substantive entitlement to duty-paid input credit cannot be denied merely on that ground when the foundational facts are established.

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