Essential character governs excise classification; Boroline treated as medicine, and without-prejudice exemption did not create estoppel.

Boroline was treated as a medicinal preparation, not a cosmetic, because its boric ointment composition and stated use for treating chapped skin, cracked nipples, cuts and dry skin showed essential medicinal character under the excise tariff. The change in tariff structure and chapter notes did not alter that classification, which was sustained. Availing exemption during the pending classification dispute, pursuant to an interim without-prejudice direction, did not amount to waiver or estoppel; the assessee remained entitled to contest the correct classification. The classification in favour of the assessee was upheld and the challenge failed.

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Issues: (i) Whether the product "Boroline" was classifiable as a patent or proprietary medicine under Heading 30.03 or as a cosmetic preparation under Heading 33.04 of the Central Excise Tariff Act, 1985; (ii) Whether availing the exemption benefit under the relevant notification while the classification dispute was pending amounted to waiver or estoppel against contending for a different classification.

Issue (i): Whether the product "Boroline" was classifiable as a patent or proprietary medicine under Heading 30.03 or as a cosmetic preparation under Heading 33.04 of the Central Excise Tariff Act, 1985.

Analysis: The product was described as an antiseptic boric ointment containing boric acid, zinc oxide, white petroleum jelly and lanoline. Its composition and use for treatment of chapped skin, cracked nipples, cuts and dry skin indicated medicinal character rather than a mere cosmetic or toilet preparation. The change in tariff structure and chapter notes did not warrant a different conclusion from the earlier classification accepted between the parties.

Conclusion: Boroline was held to be a medicine and not a cosmetic product, and the classification under the medicinal tariff heading was sustained in favour of the assessee.

Issue (ii): Whether availing the exemption benefit under the relevant notification while the classification dispute was pending amounted to waiver or estoppel against contending for a different classification.

Analysis: The exemption was availed pursuant to the appellate court's order directing clearance under the disputed heading without prejudice to the parties' rights and contentions. Such compliance with an interim direction did not amount to an admission of the correct classification, nor did it create waiver or estoppel against the assessee's contention on classification. The subsequent claim was also protected by the absence of any voluntary abandonment of the dispute.

Conclusion: Availment of the exemption did not bar the assessee from disputing the classification, and no waiver or estoppel arose.

Final Conclusion: The classification adopted by the High Court was upheld, the challenge failed, and the special leave petition was rejected.

Ratio Decidendi: Excise classification must follow the product's essential character and common understanding, and compliance with an interim or without-prejudice exemption arrangement does not create waiver or estoppel against contesting classification.

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