Approved classification cannot be reopened retrospectively without suppression; time-bar and penalties under excise rules were set aside.

An approved classification list could not be reopened retrospectively in the absence of proof of suppression, concealment, or a changed factual basis. The demand for differential duty was therefore held time-barred, as the extended period under the proviso to section 11A was not available when the show cause notice was issued beyond the normal limitation period. Penalties under rule 173Q and rule 9(2) also failed because no clandestine removal or procedural contravention was established, and the penalty foundation disappeared once the duty demand was defeated on limitation. The duty demand and penalties were set aside, with consequential relief.

---

---

Issues: (i) whether the demand for differential duty was barred by limitation and the extended period under the proviso to section 11A could be invoked; (ii) whether penalties under rule 173Q and rule 9(2) were sustainable.

Issue (i): Whether the demand for differential duty was barred by limitation and the extended period under the proviso to section 11A could be invoked.

Analysis: The classification list had been approved and the goods had been cleared under that approved classification for years. A subsequent change in classification, in such circumstances, operates prospectively. The show cause notice was issued long after the relevant period, and no material was brought on record to show any new manufacturing process or positive suppression justifying invocation of the extended period. Mere allegation of misdeclaration, without proof of concealment or a changed factual basis, was insufficient to sustain the demand beyond the normal limitation period.

Conclusion: The demand was barred by limitation and the proviso to section 11A could not be invoked.

Issue (ii): Whether penalties under rule 173Q and rule 9(2) were sustainable.

Analysis: Once the duty demand itself failed on limitation, the foundation for penal action was not available. No suppression of facts or clandestine removal was established to justify penalty under rule 173Q. Penalty under rule 9(2) was also untenable because the goods were not shown to have been removed in contravention of the prescribed procedure or rule 9(1).

Conclusion: The penalties under rule 173Q and rule 9(2) were not sustainable.

Final Conclusion: The duty demand and penalties were set aside, and the appeal succeeded with consequential relief.

Ratio Decidendi: An approved classification list cannot be reopened retrospectively in the absence of proof of suppression or misdeclaration warranting the extended limitation period, and penalties cannot survive when the underlying duty demand fails and no procedural violation is established.

---