Generating sets as generators under item 41B: later amendment treated as clarificatory, not restrictive.

Generating sets were treated as "generators" under item 41B of the Tamil Nadu General Sales Tax Act because, in ordinary meaning, a generator is a device that converts mechanical energy into electrical energy. The later insertion of item 41D, which expressly mentioned generators, generating sets, transformers and related parts, was treated as clarificatory rather than as narrowing the earlier entry. On the facts, the generating sets sold by the assessees answered the statutory description in item 41B, so they remained taxable under that entry even for the period before item 41D was introduced.

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Issues: Whether generating sets sold by the assessees were taxable under item 41B of the First Schedule to the Tamil Nadu General Sales Tax Act, 1959 for the period prior to the insertion of item 41D, or whether they were outside item 41B and taxable only under item 41D from 13 September 1977.

Analysis: Item 41B, as originally framed, covered generators and transformers, but the amended version from 13 September 1977 excluded them and item 41D was then introduced expressly mentioning generators, generating sets, transformers and parts and accessories thereof. The decisive question was whether a generating set was a distinct commodity from a generator. The Court held that a generator in ordinary meaning is a device that transforms mechanical energy into electrical energy, and a generating set sold by the assessees was such a device. The Court rejected the attempt to use the later insertion of item 41D to narrow the scope of the earlier entry, and treated the later entry as clarificatory rather than as creating a new category. On the facts, the generating sets produced and sold were nothing but generators within the earlier entry.

Conclusion: Generating sets were held to fall within the expression generators under item 41B even for the period before item 41D was introduced, and the tax assessments were upheld.

Ratio Decidendi: Where the substance of the product answers the statutory description of a taxable commodity, a later amendment expressly mentioning that commodity may be treated as clarificatory, and the earlier entry will be construed to include it if its ordinary meaning already covered the goods.

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