Natural justice and ad valorem duty: undisclosed material cannot sustain adjudication, and additional consideration must be properly examined.

An adjudication founded on inquiry reports and statements not supplied to the assessee violates natural justice because the affected party is denied a fair opportunity to rebut the adverse material. The court also noted that allegations of clandestine removal, receipt of additional consideration, and duty on slightly overfilled carbon black assessed on an ad valorem basis required proper examination of the factual record, including whether any extra amount was realised over invoice price. The adverse order was therefore set aside and the matter remitted for fresh adjudication.

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Issues: (i) Whether the adjudication order was vitiated for breach of natural justice for relying upon inquiry reports and material not supplied to the assessee. (ii) Whether the matter required fresh examination on the questions of alleged clandestine removal, receipt of additional consideration, and demand of duty on slightly overfilled carbon black assessed on ad valorem basis.

Issue (i): Whether the adjudication order was vitiated for breach of natural justice for relying upon inquiry reports and material not supplied to the assessee.

Analysis: The material used against the assessee included inquiry reports said to have been obtained from other commissionerates and a statement relied upon by the adjudicating authority. The record showed that those reports were not furnished to the assessee and no effective opportunity was given to rebut them. An order founded on such undisclosed material cannot stand where the affected party is denied a fair chance to meet the case against it.

Conclusion: The adjudication on this aspect was held to be in breach of the principles of natural justice.

Issue (ii): Whether the matter required fresh examination on the questions of alleged clandestine removal, receipt of additional consideration, and demand of duty on slightly overfilled carbon black assessed on ad valorem basis.

Analysis: The earlier remand and the subsequent proceedings showed that the dispute also turned on whether the excess quantity was merely a slightly overfilled packed quantity and whether any extra consideration had been received over the invoice price. The authority below did not satisfactorily examine the assessee's case that duty was payable on ad valorem basis and that no additional amount was realised for the excess quantity. The impugned order therefore could not be sustained on the material as considered and required reconsideration by the Tribunal.

Conclusion: The impugned order was set aside and the matter was remitted for fresh adjudication on the identified questions.

Final Conclusion: The appeal succeeded in part, the adverse order was quashed, and the controversy was sent back for de novo consideration on the factual and legal issues governing duty liability.

Ratio Decidendi: An adjudication based on undisclosed adverse material violates natural justice, and where duty is ad valorem the existence of extra consideration and the nature of the alleged excess quantity must be properly examined before fastening liability.

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