Retrospective sales tax amendment and rectification powers upheld; cotton inter-State sales lost exemption under the amended scheme.

The 1969 amendments to the Central Sales Tax Act were upheld as a valid scheme linking Central tax liability to the State sales tax framework and its procedural machinery, with the expression "sales tax law" extending to later State amendments. The validating clause did not bar fresh rectification where the statute continued to permit correction of an earlier refund-based order. Rule 38 of the Mysore Sales Tax Rules was held wide enough to rectify a prior rectification within five years from the relevant mistake, so the notice was within time. Section 8(2A) did not preserve exemption for inter-State cotton sales after section 6(1A), as the provisions operated in different fields and the charging provision prevailed.

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Issues: (i) Whether sections 8 and 9 of the Central Sales Tax Act, 1956, as amended in 1969, were unconstitutional on the ground of excessive delegation and adoption of State sales tax law from time to time; (ii) whether the validating provisions of the 1969 amendment prevented fresh rectification proceedings against the earlier refund-based rectification; (iii) whether the notice for rectification under rule 38 of the Mysore Sales Tax Rules, 1957, was barred by limitation and unsupported by the power to rectify; and (iv) whether section 8(2A) of the Central Sales Tax Act, 1956, continued to exempt inter-State sales of cotton notwithstanding section 6(1A).

Issue (i): Whether sections 8 and 9 of the Central Sales Tax Act, 1956, as amended in 1969, were unconstitutional on the ground of excessive delegation and adoption of State sales tax law from time to time.

Analysis: The statutory scheme made the Central levy depend on the rate and procedural machinery of the appropriate State sales tax law. The adopted State law was not treated as an abdication of legislative function, because Parliament retained the controlling Central policy and merely linked rate and procedure to the State regime. The Court also treated the expression "sales tax law" as embracing the State law in force from time to time, including later amendments. The challenge based on invalid delegation therefore could not succeed.

Conclusion: The challenge to the constitutional validity of sections 8 and 9 failed and was against the petitioner.

Issue (ii): Whether the validating provisions of the 1969 amendment prevented fresh rectification proceedings against the earlier refund-based rectification.

Analysis: The validating clause preserved the legality of prior assessments and also preserved the right to question assessments and claim refund according to the Central Act as amended. The retrospective amendment superseded the earlier position on which the refund had been granted. Validation did not freeze an erroneous rectification so as to bar further correction where the statute still permitted rectification proceedings.

Conclusion: The validating provisions did not bar the fresh rectification proceedings and this contention was rejected.

Issue (iii): Whether the notice for rectification under rule 38 of the Mysore Sales Tax Rules, 1957, was barred by limitation and unsupported by the power to rectify.

Analysis: Rule 38 authorised rectification of any order within five years from the date of the order containing the mistake apparent on the record. The Court held that the rule was wide enough to cover rectification of a prior rectification order and that the limitation period ran from the date when the mistake sought to be corrected entered the record. The mistake resulting from the earlier rectification was therefore within time and could be corrected under the rule.

Conclusion: The notice was not barred by limitation and the rectification power was available; the contention failed.

Issue (iv): Whether section 8(2A) of the Central Sales Tax Act, 1956, continued to exempt inter-State sales of cotton notwithstanding section 6(1A).

Analysis: Section 6(1A) imposed liability on inter-State sales notwithstanding the absence of State tax on an intra-State sale of the same goods, while section 8(2A) dealt with exemption or concessional rate where the goods were generally exempt under State law. The two provisions were held to operate in different fields and to be complementary. The non obstante clause in section 8(2A) did not override the retrospective charging provision in section 6(1A).

Conclusion: Cotton sales were not exempt from Central sales tax under section 8(2A) after the amendment, and this contention was rejected.

Final Conclusion: The writ petition was found to be without merit because the 1969 amendments validly governed the levy and collection of Central sales tax, the rectification proceedings were competent, and the claimed exemption did not survive.

Ratio Decidendi: A retrospective taxing amendment that validly links Central tax liability to the State sales tax framework may be applied through the State procedural machinery, and a validating provision does not prevent lawful rectification where the statute expressly preserves assessment and refund remedies.

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