Cenvat credit valuation and unjust enrichment: input duty excluded from assessable value, and refund allowed on proof of non-passing of duty.

Cenvat credit taken on inputs could not be added to the assessable value under section 4 of the Central Excise Act, 1944, because duty paid on inputs, once taken as credit, does not form part of the input cost for valuation. On refund, the assessee established through Chartered Accountant and Indian Railway certificates that the duty incidence had not been passed on to the buyer, so the claim was not barred by unjust enrichment. The finding was in favour of the assessee.

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Issues: Whether Cenvat credit availed on inputs could be included in the assessable value under section 4 of the Central Excise Act, 1944, and whether the refund claim was barred on the ground that the incidence of duty had been passed on.

Analysis: The dispute turned on the valuation of the final product under section 4(1)(a) read with section 4(3)(d) of the Central Excise Act, 1944. The Tribunal applied the settled principle that duty paid on inputs, once taken as Cenvat credit, does not form part of the cost of such inputs for valuation purposes. It also accepted the evidence produced by the appellant, including certificates from the Chartered Accountant and the Indian Railway, to show that the incidence of duty had not been passed on to the buyer.

Conclusion: Cenvat credit on inputs could not be treated as part of the assessable value, and the refund was not hit by unjust enrichment. The finding went in favour of the assessee.

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