Valid show cause notice requirement defeats duty demand where adjudication shifts to different goods and legal footing

A duty demand is invalid where the show cause notice does not specifically identify the goods and legal basis for the levy sought to be recovered. The notice in this matter referred to piston rod assemblies, yet adjudication proceeded on pistons without any valid notice covering that liability, and the defect was not cured by the order-in-original. The proceeding was also unsustainable because the notice invoked Rule 9(2) while adjudication proceeded on a different limitation footing under Rule 10. An adjudication cannot rest on a basis not disclosed in the notice.

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Issues: Whether the duty demand was vitiated for want of a proper show cause notice and for being founded on an incorrect rule invocation.

Analysis: The demands were issued in respect of piston rod assemblies, but the adjudication proceeded to confirm duty on pistons without any valid notice specifically calling upon the appellants to answer that liability. A show cause notice must inform the assessee of the precise goods and the legal basis on which duty is proposed so that an effective defence can be made. The defect was not cured merely by the order-in-original. The notice also invoked Rule 9(2), while the adjudicating authority ultimately treated the matter as one not involving clandestine removal and proceeded on a different limitation basis under Rule 10. A proceeding cannot be sustained where the foundation notice does not validly correspond to the power actually exercised in adjudication.

Conclusion: The demand was invalid and the impugned orders were liable to be set aside; the appeal succeeds in favour of the assessee.

Final Conclusion: The adjudication was quashed for absence of a valid notice covering the duty demand and for lack of a lawful procedural foundation for recovery.

Ratio Decidendi: A duty demand must be supported by a valid show cause notice that specifically identifies the goods and the statutory basis of the proposed levy, and an adjudication cannot be sustained on a different footing than that disclosed in the notice.

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