Tariff classification of sodium carboxymethyl cellulose under the specific cellulose-derivative entry prevailed over the residuary item.

Proceedings under Section 35E had to be confined to the ground arising from the Assistant Collector's order, so the Revenue could not enlarge the challenge before the Collector (Appeals) by introducing a new basis not considered below. The Collector (Appeals) therefore lacked jurisdiction to decide that fresh ground, and that aspect of the Revenue's appeal failed. On classification, sodium carboxymethyl cellulose was treated as a cellulose ether and chemical derivative of cellulose under Tariff Item 15A(1); the argument for the residuary Tariff Item 68 was rejected because the specific entry for cellulose ethers and other cellulose derivatives prevailed over the residuary entry.

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Issues: (i) Whether, in proceedings initiated under Section 35E, the Revenue could enlarge the basis of the challenge before the Collector (Appeals) beyond the ground that arose from the Assistant Collector's order. (ii) Whether sodium carboxymethyl cellulose is classifiable under Tariff Item 15A(1) as a cellulose ether or chemical derivative of cellulose, or under Tariff Item 68 as a residuary item.

Issue (i): Whether, in proceedings initiated under Section 35E, the Revenue could enlarge the basis of the challenge before the Collector (Appeals) beyond the ground that arose from the Assistant Collector's order.

Analysis: The challenge under Section 35E(4) had to remain confined to a point arising from the Assistant Collector's order. The show cause notice and the adjudication below proceeded on the footing that the product was a chemical derivative of cellulose, whereas the Section 35E application introduced the distinct ground that it was a cellulose ether. That issue had not been before the Assistant Collector and therefore could not validly be taken up in the Section 35E proceedings.

Conclusion: The Collector (Appeals) lacked jurisdiction to decide the new ground, and the Revenue's appeal on that aspect could not be entertained.

Issue (ii): Whether sodium carboxymethyl cellulose is classifiable under Tariff Item 15A(1) as a cellulose ether or chemical derivative of cellulose, or under Tariff Item 68 as a residuary item.

Analysis: After the 1-3-1982 restructuring, Tariff Item 15A(1) expressly covered cellulose ethers and other chemical derivatives of cellulose, whether plasticised or not. The tariff did not require that such goods must also be plastic materials or capable of plasticisation. The technical literature and departmental test reports treated the product as a cellulose ether and/or chemical derivative of cellulose. The argument based on incomplete etherification, degree of substitution, water solubility, modified cellulose, or trade parlance was rejected. A specific tariff entry had to prevail over the residuary entry.

Conclusion: Sodium carboxymethyl cellulose falls under Tariff Item 15A(1) and not Tariff Item 68.

Final Conclusion: The classification controversy was resolved in favour of Tariff Item 15A(1) for the product, while the Revenue's challenge in the appeal relating to the jurisdictional defect under Section 35E failed.

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