Retrospective tax penalty barred where the statute lacks a charging provision for penalty under the additional sales tax scheme.

Penalty under the Tamil Nadu Additional Sales Tax Act could not be imposed for the period before Section 3-B was inserted, because the Act then lacked a substantive charging provision authorising penalty. A general reference in Section 2(1)(b) to the principal sales tax law applied that law only to the extent indicated by the scheme of the later Act and did not import the penalty machinery retrospectively. The Court treated penalty liability as substantive, distinguished surcharge and interest authorities, and rejected the argument that Section 3-B was merely clarificatory. The issue was decided in favour of the assessee.

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Issues: Whether, before insertion of Section 3-B, penalty could be levied under the Tamil Nadu Additional Sales Tax Act, 1970 by taking recourse to Section 2(1)(b) and the penalty provisions of the Tamil Nadu General Sales Tax Act, 1959.

Analysis: The additional sales tax enactment was held to operate as a separate levy and its provisions had to be read with the principal sales tax law only to the extent the later Act indicated. Section 2(1)(b), as it originally stood, was understood as making the principal Act applicable in relation to tax payable under the additional sales tax scheme, not as supplying a charging provision for penalties. The Court distinguished decisions dealing with surcharge and interest and held that a provision creating liability to penalty is substantive law. Since a charging provision for penalty was absent in the Additional Sales Tax Act prior to amendment, the penalty machinery of the principal Act could not be imported to impose penalty retrospectively. Section 3-B was therefore not treated as merely clarificatory.

Conclusion: Penalty could not be sustained for the period prior to the amendment introducing Section 3-B, and the issue was answered in favour of the assessee.

Ratio Decidendi: A penalty cannot be imposed retrospectively under a taxing enactment unless the statute itself contains a substantive charging provision authorising such levy; a general reference to the principal Act does not, by itself, create that power.

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