Unjust enrichment in excise refunds bars payment where duty burden was passed on, even after RT 12 adjustment recovery.

The doctrine of unjust enrichment was applied to an erroneous excise refund granted by adjustment in RT 12 assessment under Rule 173-I. The Tribunal held that Section 11B governed the admissibility of the refund, including refunds arising from such adjustments, and barred payment to the assessee where the duty burden had been passed on to buyers. Recovery could still be pursued under Section 11A for the erroneous refund, but that did not displace the Section 11B inquiry. As the assessee failed to show that the incidence of duty had not been passed on, the refund was disallowed and the recovery demand was sustained.

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Issues: Whether the doctrine of unjust enrichment under Section 11B of the Central Excise Act, 1944 applies to an erroneous refund granted on RT 12 assessment under Rule 173-I of the Central Excise Rules, 1944, and whether such refund can be recovered under Section 11A of the Central Excise Act, 1944.

Analysis: The refund had been granted while assessing RT 12 returns, but the Department later issued a notice for recovery on the ground that the duty had been erroneously refunded and the incidence had been passed on to buyers. The Tribunal held that a notice under Section 11A for recovery of erroneous refund did not amount to applying unjust enrichment to Section 11A itself. Rather, Section 11B governed the question whether the refund was ultimately admissible, and if the incidence of duty had been passed on, the amount was liable to be credited to the Consumer Welfare Fund. The Tribunal distinguished earlier decisions relied upon by the assessee and followed the view that Section 11B covered refunds by way of adjustment under Rule 173-I as well.

Conclusion: The doctrine of unjust enrichment applied, the refund was not allowable to the assessee, and recovery of the erroneously refunded duty was upheld.

Final Conclusion: The appeal failed because the assessee did not establish that the duty burden had not been passed on to customers, and the recovery demand was sustained.

Ratio Decidendi: Where an excise refund granted by adjustment of RT 12 assessment is shown to have been passed on to buyers, Section 11B governs the admissibility of the refund and bars payment to the assessee under the doctrine of unjust enrichment, even if recovery is initiated through Section 11A for erroneous refund.

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