Unjust enrichment defeats indirect tax refund claim where duty burden was not shown to remain with the taxpayer

Refund of indirect excise duty was refused because the claim was made after substantial delay and the petitioners did not prove that the duty burden had not been passed on to consumers. The Court applied the doctrine of unjust enrichment and held that refund in writ jurisdiction is unavailable unless the claimant produces satisfactory evidence of non-passing of the tax incidence. A procedural objection that the hearing authority and deciding authority were different was also rejected, as the successor authority had considered the record and no prejudice was shown. The dismissal of the refund petitions was upheld.

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Issues: (i) Whether the petitioners were entitled to refund of excise duty paid at the higher rate on the ground that the levy and retention were illegal, notwithstanding the delay in seeking refund and the principle against unjust enrichment. (ii) Whether the refund claims could be rejected on the ground that the officer who heard the matter was not the officer who decided it.

Issue (i): Whether the petitioners were entitled to refund of excise duty paid at the higher rate on the ground that the levy and retention were illegal, notwithstanding the delay in seeking refund and the principle against unjust enrichment.

Analysis: The earlier writ orders had restrained collection of duty at the higher rate until proper categorisation, but the petitioners delayed supplying samples for classification and thereafter delayed by several years in seeking refund. The Court also treated the claim as one for refund of indirect tax and applied the doctrine of unjust enrichment, holding that a refund in writ jurisdiction is not available unless the claimant establishes that the duty burden was not passed on. The petitioners failed to produce satisfactory documentary proof that the burden had not been passed on to consumers. In addition, refund was sought long after the final classification had become settled.

Conclusion: The refund claims were not maintainable and were rejected against the petitioners.

Issue (ii): Whether the refund claims could be rejected on the ground that the officer who heard the matter was not the officer who decided it.

Analysis: The Court considered the principle that the hearing authority and deciding authority should ordinarily be the same, but noted that the rule is not absolute and depends on the statutory setting and the nature of the decision. Here, the successor authority had considered the record and the petitioners' submissions in appeal, and the Court found no sufficient ground to unsettle the matter at a distant point of time. The alleged procedural defect did not justify interference where the substantive claim itself was unsustainable.

Conclusion: The challenge based on the hearing-authority/decision-authority distinction was rejected.

Final Conclusion: The Court declined to interfere with the refund refusals and upheld the dismissal of the petitions in their entirety.

Ratio Decidendi: A refund of indirect tax in writ jurisdiction can be granted only if the claimant establishes that the duty burden was not passed on, and a procedural objection about a different deciding officer will not warrant interference where the substantive claim fails and no prejudice is shown.

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