Unjust enrichment in refund claims applies to duty on capital goods, with proof required that the burden was not passed on.

Section 11B of the Central Excise Act requires a refund claimant to prove by evidence that the duty incidence was not passed on, and that requirement applies equally to duty paid on capital goods. Classification of goods as capital goods or non-consumable in the finished product does not by itself exclude the duty from cost or pricing, and the burden remains on the claimant to show non-recovery in the sale price. Price fixation for coal grades under the 8-1-1986 notification did not establish exclusion of duty from the price, and alleged accounting losses did not create a presumption against passing on. The refund claim therefore failed for want of proof of unjust enrichment.

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Issues: (i) whether the doctrine of unjust enrichment applies to refund claims relating to duty paid on capital goods; (ii) whether price fixation of coal grades under the notification dated 8-1-1986 established that duty element was excluded from the price; (iii) whether the fact that capital goods are non-consumable in the final product meant that duty paid on them could not form part of the cost of the final product; and (iv) whether the assessee's alleged losses showed that the duty burden had not been passed on to consumers.

Issue (i): whether the doctrine of unjust enrichment applies to refund claims relating to duty paid on capital goods.

Analysis: Section 11B of the Central Excise Act, 1944 requires an applicant for refund to establish by documentary or other evidence that the duty was paid by it and that the incidence of such duty was not passed on to any other person. The provision does not carve out any exception for duty paid on capital goods. The fact that the goods were capital goods, or that the final product was non-excisable, did not by itself exclude the statutory requirement of proving non-passing of incidence. The assessee therefore had to prove on facts that the duty on the capital goods was not recovered in the sale price of the final product.

Conclusion: the doctrine of unjust enrichment applies to refund claims relating to duty paid on capital goods, and the assessee failed to satisfy that burden.

Issue (ii): whether price fixation of coal grades under the notification dated 8-1-1986 established that duty element was excluded from the price.

Analysis: The notification fixing prices for different grades of coal merely indicated graded pricing. It did not state that duty element on inputs or capital goods was excluded. The materials relied upon also did not show that the Government ignored duty while fixing the price. On the contrary, the available material suggested that several cost factors were taken into account, and there was no reliable basis to infer exclusion of duty from the price structure.

Conclusion: the price fixation did not establish exclusion of the duty element from the coal price.

Issue (iii): whether the fact that capital goods are non-consumable in the final product meant that duty paid on them could not form part of the cost of the final product.

Analysis: Whether capital goods physically form part of the final product is not the decisive test. Even goods not present in the finished product may still affect costing and pricing. The statutory inquiry under Section 11B is whether the duty incidence was passed on, not whether the goods were consumed in the final product. The assessee was required to produce evidence showing that the duty on capital goods was not included in the sale price, and no such material was produced.

Conclusion: the non-consumable nature of capital goods did not prevent the duty paid on them from forming part of the cost of the final product.

Issue (iv): whether the assessee's alleged losses showed that the duty burden had not been passed on to consumers.

Analysis: Losses in the accounts do not create a presumption that duty has not been passed on. The question remains one of fact and must be established by evidence. Mere financial loss, even by a Government company, does not dispense with the statutory requirement under Section 11B to prove non-passing of the duty incidence.

Conclusion: the alleged losses did not establish that the duty burden had not been passed on.

Final Conclusion: the refund claim failed for want of proof that the duty incidence had not been passed on, and the order rejecting refund was sustained.

Ratio Decidendi: In refund claims under Section 11B of the Central Excise Act, 1944, unjust enrichment applies even to duty paid on capital goods, and the claimant must affirmatively prove by evidence that the duty incidence was not passed on to any other person.

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