Additional sales tax limits: levy upheld generally, but not on inter-State or export sales; penalty rule struck down.

An additional sales tax levy was upheld against the argument that it was destructive of the parent enactment and outside the scheme of the principal tax law, but the levy was held inapplicable to inter-State and export sales because liability did not extend beyond intra-State transactions. The rule authorising penalty was struck down as ultra vires, since delegated legislation cannot create penal liability without express or necessarily implied statutory authority. The legal position stated was that an additional sales tax cannot be demanded on transactions outside the class covered by the Act, and a penal rule must trace back to a valid enabling provision in the parent statute.

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Issues: (i) Whether the additional sales tax levy was invalid as being destructive of the parent enactment and beyond the scheme of the principal tax law; (ii) Whether inter-State and export sales were liable to additional sales tax under the impugned levy; (iii) Whether the rule authorising imposition of penalty was ultra vires for want of statutory authority.

Issue (i): Whether the additional sales tax levy was invalid as being destructive of the parent enactment and beyond the scheme of the principal tax law.

Analysis: The challenge to the levy on the ground that it operated as an addition to the tax under the parent Act and was destructive of its scheme was examined with reference to the earlier decision delivered the same day. The reasoning in that decision was adopted, and the contention was negatived.

Conclusion: The challenge failed and the levy was upheld on this ground.

Issue (ii): Whether inter-State and export sales were liable to additional sales tax under the impugned levy.

Analysis: The concession accepted on behalf of the State that no additional sales tax could be demanded where there was no intra-State sale led to the conclusion that inter-State and export sales could not bear the additional levy. The court treated this as a correct statement of the legal position and indicated that liability under the Act did not extend to such sales.

Conclusion: Inter-State and export sales were not liable to additional sales tax.

Issue (iii): Whether the rule authorising imposition of penalty was ultra vires for want of statutory authority.

Analysis: The validity of the penal rule was tested against the settled principle that delegated legislation cannot create a penal liability unless the parent statute confers appropriate authority. Accepting the State's concession based on Supreme Court authority, the court held that the rule exceeded the power conferred by the Act.

Conclusion: The penalty rule was ultra vires and was struck down.

Final Conclusion: The writ petition succeeded in part: the general challenge to the levy was rejected, but the levy was held inapplicable to inter-State and export sales and the penal rule was invalidated.

Ratio Decidendi: A delegated rule cannot impose a penalty unless the parent statute expressly or by necessary implication authorises such penal provision, and an additional sales tax levy does not extend to transactions outside the class of intra-State sales.

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