Extended limitation under excise law depends on meaningful knowledge of suppression, not the mere date of inspection.

For invoking the extended period under Section 11A(1), the mere date of departmental inspection was not decisive; limitation turned on when the department acquired meaningful knowledge of the alleged suppression after examining seized records and related correspondence, so the notice dated 17.05.1996 was treated as within time. The declarations accepted earlier did not create finality on the classification claim. The supplementary show cause notice was also treated as an add-on demand for omitted Special Excise Duty, without altering the underlying suppression basis, and it remained within the limitation position already sustained for the original notice.

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Issues: (i) Whether the date of inspection by departmental officers had any bearing on computation of limitation for issuing the show cause notice under the extended period; (ii) whether the supplementary show cause notice could alter the limitation position or render the demand time-barred.

Issue (i): Whether the date of inspection by departmental officers had any bearing on computation of limitation for issuing the show cause notice under the extended period.

Analysis: The dispute was confined to the limited remand direction on limitation. The Tribunal found that the departmental visit on 11.11.1993 was only the starting point of investigation and that knowledge of the alleged suppression arose only after scrutiny of the seized records and subsequent correspondence. The inspection itself did not amount to complete knowledge of the alleged modus operandi, and the declarations accepted on 22.10.1990 did not confer finality on the assessee's classification claim. On that basis, the invocation of the extended period under the proviso to Section 11A(1) was held to be valid for the show cause notice dated 17.05.1996.

Conclusion: The date of inspection had no bearing on limitation, and the demand was not time-barred.

Issue (ii): Whether the supplementary show cause notice could alter the limitation position or render the demand time-barred.

Analysis: The supplementary notice was held to be only an add-on demand for Special Excise Duty that had been omitted in the original notice, without changing the basic demand or the factual foundation of suppression. Since the original notice itself was within the extended period, the supplementary notice also remained within time. The Tribunal therefore rejected the argument that the supplementary notice had to be treated as the operative date for limitation.

Conclusion: The supplementary show cause notice did not make the demand time-barred.

Final Conclusion: The Tribunal upheld the view that extended limitation was correctly invoked and that the demand survived limitation; the appeal was dismissed.

Ratio Decidendi: For invoking the extended period under Section 11A(1), the relevant date is not the mere date of inspection but the point at which the department acquires meaningful knowledge of the alleged suppression after examination of the material collected.

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