Limitation and manufacture in excise: prior departmental knowledge defeats extended period, while converted aluminium bottles can amount to manufacture.

Departmental knowledge and repeated disclosure of the activity defeated any allegation of suppression, so the extended limitation period could not be invoked. The conversion of duty-paid rounded aluminium bottles into tapered, threaded or unthreaded bottles produced a commercially distinct and differently usable product, satisfying the test of manufacture and, in principle, attracting central excise duty. The exemption and set-off claims required consideration on their merits, and the penalty could not survive where the underlying demand itself failed. The discussion therefore turns on limitation, manufacture, and the treatment of exemption-linked penalty exposure in excise matters.

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Issues: (i) Whether the duty demand was barred by limitation in view of departmental knowledge and absence of suppression; (ii) whether converting duty-paid rounded aluminium bottles into tapered, threaded or unthreaded bottles amounted to manufacture attracting central excise duty; (iii) whether exemption and set-off claims, and the consequential penalty, were sustainable.

Issue (i): Whether the duty demand was barred by limitation in view of departmental knowledge and absence of suppression.

Analysis: The activity had been disclosed to and examined by the department on earlier occasions, including prior clarification and seizure-related proceedings. The record showed continued departmental awareness, repeated declarations, and no basis to infer suppression with intent to evade duty. On those facts, the extended limitation provision could not be invoked.

Conclusion: The demand was barred by limitation and the invocation of the extended period was not justified.

Issue (ii): Whether converting duty-paid rounded aluminium bottles into tapered, threaded or unthreaded bottles amounted to manufacture attracting central excise duty.

Analysis: The process did not merely alter form without legal consequence. A different commercially identifiable product came into existence, with a changed shape, utility, and end use. Applying the settled test of manufacture, the resulting bottles were distinct marketable goods and not the same product in another form. The conversion therefore satisfied the requirements of manufacture and would otherwise attract levy.

Conclusion: The process amounted to manufacture and, in principle, attracted central excise duty.

Issue (iii): Whether exemption and set-off claims, and the consequential penalty, were sustainable.

Analysis: The exemption notifications and related claims were not dealt with by a clear and complete finding in the impugned order. Exemption granted by notification must be considered on its merits, and a mere procedural lapse cannot by itself defeat a substantive exemption claim. Since the duty demand could not survive on the facts, the penalty founded on that demand also could not stand.

Conclusion: The exemption-related plea required acceptance, and the penalty was unsustainable.

Final Conclusion: The appellate relief resulted in deletion of the confirmed duty and penalty, with the assessee succeeding overall.

Ratio Decidendi: Where the department had prior knowledge of the activity and suppression was not established, the extended limitation period cannot be invoked; and when a process produces a commercially distinct and differently usable product, it constitutes manufacture for excise purposes.

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