Excise classification requires proof, not assumption: trade notices alone cannot establish that goods are thin-walled bearings.

Excise classification of thrust washers, thrust half-washers and wrapped bushes could not rest on a trade notice or assumed functional similarity with thin-walled bearings. The SC held that a trade notice has no binding force by itself, and that classification under the exemption notification required reliable material showing the goods actually answered the tariff description. On the record, the Court found it factually unsafe to conclude that the goods conformed to the relevant Indian Standard, and declined to determine the technical classification without a proper factual basis. The High Court and departmental orders were therefore not sustained, and the matter was sent back for reconsideration.

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Issues: Whether the appellant's thrust washers, thrust half-washers and wrapped bushes were classifiable as thin-walled bearings so as to attract duty under the exemption notification.

Analysis: The notification exempted motor vehicle parts and accessories except specified items, including thin-walled bearings. The Department proceeded mainly on a trade notice and on the assumption that the goods performed the same function as bearings and answered the specification in the Indian Standards. The Court held that a trade notice had no binding force by itself, and that the authorities and the High Court had proceeded without adequate material to establish that the goods manufactured by the appellant were in fact thin-walled bearings. The Court also found that the conclusion that the goods undoubtedly conformed to the relevant Indian Standard was factually unsafe on the record, and declined to decide the technical classification itself in the absence of a proper factual foundation.

Conclusion: The orders of the High Court and the departmental authorities could not be sustained and the matter required reconsideration on a proper factual basis.

Ratio Decidendi: A trade notice is not binding, and excise classification cannot be sustained on assumptions or functional similarity alone without reliable material establishing that the goods answer the statutory or tariff description.

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