UPS classification under Chapter Heading 8543 upheld, with timely show cause notices sustaining duty demands despite a later circular.

UPS systems were treated as classifiable under Chapter Heading 8543, because a Larger Bench had already settled that tariff position and the Tribunal declined to distinguish it on the basis of HSN notes, battery function, or absence of a transfer or bypass switch. The demand for the disputed periods was also sustained, since the show cause notices were issued within the normal limitation period and clearly informed the assessee that classification under Chapter Heading 8543 was proposed instead of Chapter Heading 8504. A later revised circular did not limit the operation of the notices.

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Issues: (i) Whether UPS systems were classifiable under Chapter Heading 8543 as against the assessee's claim for Chapter Heading 8504; (ii) whether the demands raised for the relevant periods were unsustainable on the ground that they could operate only from the date of the Board's revised circular or from a later notice.

Issue (i): Whether UPS systems were classifiable under Chapter Heading 8543 as against the assessee's claim for Chapter Heading 8504.

Analysis: The classification dispute had already been decided by a Larger Bench holding UPS systems to be classifiable under Chapter Heading 8543. The attempt to distinguish that ruling by relying on the HSN notes, the role of batteries, and the absence of a transfer or bypass switch did not persuade the Tribunal. The earlier decision was treated as directly applicable and binding for the present dispute.

Conclusion: The classification under Chapter Heading 8543 was upheld, against the assessee.

Issue (ii): Whether the demands raised for the relevant periods were unsustainable on the ground that they could operate only from the date of the Board's revised circular or from a later notice.

Analysis: The Tribunal held that the show cause notices were issued within the normal period of limitation and that the notices themselves sufficiently put the assessee to notice that the goods were proposed to be classified under Chapter Heading 8543 instead of Chapter Heading 8504. The contention that duty could arise only prospectively from the revised circular was rejected, as was the reliance on the cited authority dealing with a different factual situation involving long lapse of time and retrospective levy concerns.

Conclusion: The duty demands for the disputed periods were held sustainable, against the assessee.

Final Conclusion: The impugned orders were affirmed and the appeals failed.

Ratio Decidendi: UPS systems are classifiable according to the binding tariff classification already settled by precedent, and a demand raised within limitation on the basis of a clear show cause notice is not defeated merely because a later circular is relied upon for support.

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