Extended limitation and exemption eligibility for Activated Carbon defeat the duty demand where departmental knowledge and precedent applied.

Extended limitation could not be invoked where the Department already knew of the assessee's availment of set-off and had initiated proceedings on the same subject, so the demand was time-barred. Activated Carbon was also treated as eligible for the benefit of Notification No. 201/79 for use in manufacture, as the issue was covered by binding precedent and Tribunal decisions relied on in the order, so the demand failed on merits as well. The order of demand was set aside in full.

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Issues: (i) Whether the demand raised against the assessee was barred by limitation on the ground that the Department was already aware of the availment of set-off; (ii) Whether Activated Carbon was eligible for the benefit of Notification No. 201/79 for use in the manufacture of the finished products.

Issue (i): Whether the demand raised against the assessee was barred by limitation on the ground that the Department was already aware of the availment of set-off.

Analysis: The record showed that the Department had prior knowledge of the disputed availment of set-off and had already initiated proceedings on the same subject. In these circumstances, the finding that the assessee had suppressed material facts so as to justify invocation of the extended period was unsustainable.

Conclusion: The demand was time-barred and the extended period of limitation could not be invoked against the assessee.

Issue (ii): Whether Activated Carbon was eligible for the benefit of Notification No. 201/79 for use in the manufacture of the finished products.

Analysis: The claim for benefit under the notification was supported by the assessee's assertion that Activated Carbon was essential for manufacture, and the issue was covered against the Department by binding precedent and Tribunal decisions relied upon in the order. On that basis, the impugned demand could not be sustained on merits.

Conclusion: Activated Carbon was held eligible for the benefit of Notification No. 201/79 and the demand failed on merits as well.

Final Conclusion: The order of demand was set aside in full and the appeal was allowed.

Ratio Decidendi: Extended limitation cannot be invoked where the Department already knew of the material facts, and the benefit of an exemption or set-off notification must be allowed where the input is treated as covered by the governing legal precedent.

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