Retrospective validation can cure defective reassessment, while reduced turnover estimates may still leave penalty intact.

Retrospective amendment and validating provisions under the Tamil Nadu General Sales Tax Act were held capable of curing the defect in earlier reassessment of escaped turnover, because the substituted section 16 was given effect from 1 April 1959 and prior assessments were expressly validated despite the earlier absence of best judgment authority. The reassessment was therefore not invalid merely because it had been quashed under the unamended law. On the facts, the estimated escaped turnover was further reduced after the Tribunal's partial reduction, but the penalty was sustained because it was based on actual suppression and not on the estimate.

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Issues: (i) Whether the reassessment of escaped turnover under section 16 of the Tamil Nadu General Sales Tax Act, 1959, which had earlier been quashed on the ground that best judgment assessment was not then authorised, was validated by the retrospective amendment and validating provision in Tamil Nadu Act No. 18 of 1966; (ii) whether the estimated escaped turnover and penalty called for further interference.

Issue (i): Whether the reassessment of escaped turnover under section 16 of the Tamil Nadu General Sales Tax Act, 1959, which had earlier been quashed on the ground that best judgment assessment was not then authorised, was validated by the retrospective amendment and validating provision in Tamil Nadu Act No. 18 of 1966.

Analysis: The substituted section 16 was given retrospective effect from 1 April 1959, so the power to determine escaped turnover by best judgment was treated as having existed from the beginning. The validating clause further declared that assessments made before publication of the amending Act should not be invalid merely because they were not in accordance with the earlier law. The legislative object was to remove the defect pointed out by the earlier judgment and to neutralise its effect by changing the law retrospectively, not to exercise judicial power.

Conclusion: The validation was effective, and the reassessment was not invalid merely because the earlier quashing order had been made.

Issue (ii): Whether the estimated escaped turnover and penalty called for further interference.

Analysis: The Tribunal had already reduced the estimate to 50 per cent of the assessing authority's figure. On the facts, the Court found that a further reduction was warranted for the turnover estimate, but the penalty had been levied on the actual suppression found and not on the estimated escaped turnover.

Conclusion: The turnover estimate was further reduced, but the penalty was upheld.

Final Conclusion: The revision petitions failed overall, though limited relief was granted by reducing the estimated turnover further while leaving the penalty undisturbed.

Ratio Decidendi: A retrospective amendment coupled with a validating provision can render effective an earlier assessment that lacked jurisdiction when made, if the legislative defect identified by the court is removed and the statute clearly validates prior assessments.

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