Retrospective sales tax validation upheld where the State law overrode single-point limits and cured earlier levy defects.

A State Legislature competent to tax sales or purchases may retrospectively validate an additional sales tax and expressly override an earlier single-point levy scheme. The validating enactment was upheld because it operated with a non obstante clause, applied on gross turnover at multiple points, and cured the defect identified in earlier proceedings. An earlier government undertaking did not bar reliance on the validating law, as the retrospective amendment removed the basis for refund. The assessment challenge also failed because the machinery provisions of the principal Act applied mutatis mutandis to the additional levy, making separate delegation unnecessary.

---

---

Issues: (i) Whether the Orissa Additional Sales Tax (Amendment and Validation) Act, 1983, validly imposed additional sales tax on gross turnover at multi-points notwithstanding the single point scheme of the principal Act; (ii) Whether the Government's undertaking given in the earlier proceedings prevented the State from relying on the validating enactment and defeated the claim for refund; (iii) Whether the assessment and collection machinery under the Additional Sales Tax Act was unavailable for want of separate delegation.

Issue (i): Whether the Orissa Additional Sales Tax (Amendment and Validation) Act, 1983, validly imposed additional sales tax on gross turnover at multi-points notwithstanding the single point scheme of the principal Act.

Analysis: The validating enactment was retrospective and expressly overrode the relevant charging and scheme provisions of the principal Act. By using a non obstante clause and excluding the operation of the provisions that earlier compelled reading the two enactments together, the Legislature made the additional levy operate on gross turnover and at multiple points. The matter fell within the State's legislative competence on taxes on sale or purchase of goods, and the fact that the principal Act proceeded on a single point scheme did not disable the Legislature from introducing a distinct multi-point levy through a later enactment.

Conclusion: The validating enactment was upheld, and the challenge to the levy on the ground of inconsistency with the principal Act failed.

Issue (ii): Whether the Government's undertaking given in the earlier proceedings prevented the State from relying on the validating enactment and defeated the claim for refund.

Analysis: The earlier undertaking operated in the context of the law as it then stood. Once the Legislature retrospectively validated the levy and created a legal fiction deeming past assessments and collections to have been made under the amended law, the basis for refund on the earlier footing disappeared. The earlier assessments were not set aside in their entirety, and the validating statute cured the defect identified in the prior decision. In that situation, no breach of the undertaking was established.

Conclusion: The undertaking did not prevent the State from relying on the validating Act, and the refund claim failed.

Issue (iii): Whether the assessment and collection machinery under the Additional Sales Tax Act was unavailable for want of separate delegation.

Analysis: The Additional Sales Tax Act made the machinery provisions of the principal Act applicable mutatis mutandis, and the rules defined the assessing authority by reference to the assessing authority under the principal Act. The assessment rules required simultaneous assessment of the additional tax, and the general delegation under the principal Act therefore operated for the additional levy as well. A further separate delegation was unnecessary.

Conclusion: The challenge based on want of machinery or delegation was rejected.

Final Conclusion: The validating legislation was held to be constitutionally valid, the retrospective levy on gross turnover at multiple points was sustained, and the writ petitions and civil appeal were dismissed.

Ratio Decidendi: A State Legislature competent to tax sales or purchases may retrospectively validate a tax and expressly alter the scheme of levy, including by overriding earlier single-point limitations, and such validation will also cure past assessments where the machinery provisions are made applicable to the additional levy.

---