Tax exemption differentiation between goods was valid where industry conditions justified ending the concession prospectively for brick manufacturers.
Sales tax exemption may be differentiated between classes of goods on relevant social, economic, administrative and fiscal grounds, provided the classification is not arbitrary. Ending the exemption for brick manufacturers while retaining it for tile manufacturers was treated as justified because tile manufacture was regarded as a new industry requiring incentive, while brick manufacture was established. Non-extension of the concession beyond its stated expiry date operated prospectively and did not create a retrospective levy. Promissory estoppel could not be invoked without a pleaded and proven factual basis. The challenge to withdrawal of the brick-industry exemption therefore failed.
Issues: (i) Whether the State acted arbitrarily in withdrawing sales tax exemption for brick manufacturers while continuing it for tile manufacturers under the exemption power in the sales tax statute; (ii) whether the withdrawal of exemption operated retrospectively so as to cause unlawful hardship; (iii) whether the Government was bound by an alleged promise to continue exemption for a fixed period.
Issue (i): Whether the State acted arbitrarily in withdrawing sales tax exemption for brick manufacturers while continuing it for tile manufacturers under the exemption power in the sales tax statute.
Analysis: The exemption power conferred by section 5 permitted the Government to exempt any class of goods on social, economic, administrative and fiscal considerations. In matters of taxation, the State has latitude to differentiate between classes of goods so long as the differentiation is not arbitrary. The record also treated tile manufacture as a new industry needing incentive, whereas brick manufacture was described as an established industry requiring no further support.
Conclusion: The differential treatment of bricks and tiles was not arbitrary and the challenge failed against the assessee.
Issue (ii): Whether the withdrawal of exemption operated retrospectively so as to cause unlawful hardship.
Analysis: The exemption was continued only up to 31 March 1977 and was not extended thereafter. The change was a prospective decision not to continue the concession beyond the stated period. It did not amount to retrospective legislation or a retrospective levy.
Conclusion: The contention of retrospective withdrawal was rejected and the point was decided against the assessee.
Issue (iii): Whether the Government was bound by an alleged promise to continue exemption for a fixed period.
Analysis: The alleged promise was not pleaded or established in the court below, and the claim depended on facts that were not proved or tested by rebuttal. A writ court could not entertain the plea for the first time without a factual foundation.
Conclusion: The promissory estoppel plea was not accepted and the issue was decided against the assessee.
Final Conclusion: The challenge to the withdrawal of sales tax exemption failed in all material respects, and the State's action in ending the brick industry exemption was upheld.
Ratio Decidendi: In fiscal matters, the State may differentiate between classes of goods on relevant social, economic, administrative, and fiscal grounds, and a prospective refusal to extend a tax exemption is not retrospective legislation.