Exempt waste and refund admissibility in refined rice bran oil manufacture, with unjust enrichment not proved

Fatty acids, gums and waxes arising incidentally during refined rice bran oil manufacture were treated as waste under settled precedent and were therefore exempt from duty; on that basis, duty paid on them could be refunded. The contrary view based on commercial identity and value was displaced by the Larger Bench ruling in the assessees' own case, as affirmed by the Supreme Court. The refund was also not barred by unjust enrichment because the assessees supported their claim with a chartered accountant's certificate and invoices, and the department produced no contrary evidence to show that duty had been passed on. The refund relief was thus sustained.

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Issues: (i) whether fatty acids, gums and waxes arising during manufacture of refined rice bran oil were dutiable or were exempt as waste under the relevant exemption notification, and whether refund of duty paid thereon was admissible; and (ii) whether the refund claims were barred by unjust enrichment.

Issue (i): whether fatty acids, gums and waxes arising during manufacture of refined rice bran oil were dutiable or were exempt as waste under the relevant exemption notification, and whether refund of duty paid thereon was admissible.

Analysis: The products in question arose during the refining process and were treated as waste by the settled line of decisions. The earlier contrary view that such products were dutiable because of commercial identity and value was no longer determinative, as the Larger Bench view in the assessees' own case held that such products are exempt from duty, and that view was affirmed by the Supreme Court. Following that settled position, the denial of refund on the ground of duty liability could not be sustained.

Conclusion: The issue is decided in favour of the assessee; the products were exempt and the refund claim was admissible.

Issue (ii): whether the refund claims were barred by unjust enrichment.

Analysis: The assessees produced a chartered accountant's certificate and supporting invoices indicating the extent of duty borne by themselves and the extent, if any, passed on to buyers. The department did not produce contrary evidence to displace that material. In these circumstances, the bar of unjust enrichment was not established.

Conclusion: The issue is decided in favour of the assessee; the refund was not hit by unjust enrichment.

Final Conclusion: The Revenue's appeals failed in view of the settled exemption position and the absence of proof of unjust enrichment, so the refund relief granted by the lower appellate authority stood sustained.

Ratio Decidendi: Goods generated incidentally as waste in the manufacture of exempt final products are not dutiable when binding precedent recognises them as exempt, and a refund cannot be denied on unjust enrichment without contrary evidence rebutting the assessee's documentary proof.

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