Retrospective validation under the Central Sales Tax Act barred reopening completed assessments and limited exemption claims.

A retrospective validating provision in section 9 of the Central Sales Tax Act preserved prior assessments, reassessments, levies and collections as valid, so completed assessments could not be reopened once validated. Section 10 operated only as a limited exemption enquiry requiring the dealer to prove that no tax had been collected on the relevant transactions; it did not require reassessment or redetermination of turnover, and any relief affected collection rather than the validity of the validated assessment. Section 8A was not shown to displace the finality created by section 9 or to reopen those assessments.

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Issues: Whether the retrospective validating provision in section 9 of the Central Sales Tax Act prevented reopening of completed assessments; whether proceedings under section 10 required the assessments to be reopened and the turnover redetermined; and whether section 8A had the effect of reopening validated assessments.

Issue (i): Whether the retrospective validating provision in section 9 of the Central Sales Tax Act prevented reopening of completed assessments.

Analysis: Section 9 validated assessments, reassessments, levies, collections, and related actions for the specified period notwithstanding contrary judgments or orders. The validation operated retrospectively and preserved the assessments as valid and effective, even if they had earlier been set aside or quashed. The remedy, if any, lay only within the limited saving contained in section 9(2), and where no such remedy was pursued, the assessments attained finality.

Conclusion: The validated assessments could not be reopened under section 9.

Issue (ii): Whether proceedings under section 10 required the assessments to be reopened and the turnover redetermined.

Analysis: Section 10 created only a limited exemption mechanism for dealers who had not collected tax. The burden was on the claimant to satisfy the assessing authority that no tax had been collected in respect of the relevant transactions. That enquiry was distinct from the validity of the assessment under section 9 and did not require reassessment or redetermination of turnover. If the claim succeeded, the tax would not be collected to that extent; if it failed, the validated assessment remained enforceable.

Conclusion: Section 10 did not require reopening of the assessments or redetermination of turnover.

Issue (iii): Whether section 8A had the effect of reopening validated assessments.

Analysis: Section 8A was not shown to furnish any basis for reopening the assessments validated under section 9. No deduction claim under that provision was pressed in the writ petitions, and nothing in section 8A was read as displacing the finality created by section 9.

Conclusion: Section 8A did not reopen the validated assessments.

Final Conclusion: The notices issued by the taxing authority were held to be lawful, the writ petitions were dismissed, and the appellants succeeded in challenging the contrary view taken by the learned single judge.

Ratio Decidendi: A retrospective validating provision that confirms past assessments prevents their reopening, and a separate exemption enquiry places the burden on the dealer without undoing the validated assessment.

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