Refund of duty on dealer discounts upheld where final tribunal orders and evidence show no passing on of incidence of duty.

Tribunal finality and unjust enrichment were decisive for refund claims of duty on cash and quantity discounts. Where an appellate order granting refund attained finality on appeal, subsequent show cause notices treating the refund as erroneous cannot defeat the refund entitlement. Chartered accountant certificates and dealer affidavits demonstrating that the incidence of duty was not passed on were wrongly rejected by the Commissioner (Appeals); no contrary evidence existed. Consequently, the refund of duty on discounts must be allowed where tribunal decisions are final and evidence shows no passing on of duty.

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Issues: (i) Whether a show cause notice under Section 11A can be issued to recover duty where an order granting refund under Section 11B has attained finality; (ii) Whether the appellant is entitled to refund of excise duty paid on cash discounts and credit notes (i.e., whether the bar of unjust enrichment is attracted), including the evidentiary value of Chartered Accountant certificates and dealers' affidavits.

Issue (i): Whether a show cause notice under Section 11A can be issued to recover duty after a refund order under Section 11B has attained finality.

Analysis: The Tribunal's prior decisions held that once refund orders under Section 11B attain finality (no departmental appeal under Section 35), such amounts cannot be treated as 'duty erroneously refunded' for purposes of initiating recovery under Section 11A. The impugned appeals involve refund orders that were finally adjudicated in the appellant's favour by earlier Tribunal decisions; those decisions had attained finality.

Conclusion: A show cause notice under Section 11A for recovery of amounts already finally refunded under Section 11B could not lawfully be issued; the appellant is entitled to relief on this ground.

Issue (ii): Whether the bar of unjust enrichment prevents refund of duty on cash discounts and credit notes and whether the Chartered Accountant certificates and dealers' affidavits suffice to rebut the presumption of passage of duty.

Analysis: The Commissioner (Appeals) rejected the CA certificates and affidavits for lack of supporting material, relying on precedent applying the unjust enrichment principle. Subsequent authority, including Tribunal decisions relied on by the appellant and appellate precedent, establish that where no contrary evidence is produced by the department, certified financial records and CA certificates (and supporting ledger documents/affidavits) may discharge the appellant's burden to show that the incidence of duty was not passed on. The impugned order failed to examine the Tribunal decisions and erred in rejecting the certificates without evidence to the contrary from the department.

Conclusion: The bar of unjust enrichment is not established on the record before the Tribunal; the appellant is entitled to refund of duty on cash discounts and credit notes, and the CA certificates and affidavits should have been accepted in the absence of contrary evidence.

Final Conclusion: The appeals are allowed and the appellant is entitled to refunds and reliefs as determined by the Tribunal, reversing the impugned order and granting consequential reliefs.

Ratio Decidendi: Where an order granting refund under Section 11B has attained finality, the department cannot invoke Section 11A to recover the refunded amount as 'erroneously refunded'; further, certified financial evidence (such as a Chartered Accountant's certificate with supporting documents) must be accepted to rebut the presumption of passage of duty unless the department produces contrary evidence.

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