Transitional assessment scheme and exemption consistency protect taxpayers where statutory conditions are met and suppression is not proved.

Section 12C of the Tamil Nadu General Sales Tax Act was applied to pending assessments already initiated before 01.04.2006 where the statutory conditions were met, so pre-assessment proceedings did not by themselves exclude the scheme. Denial of that benefit was justified only for the first-year assessment because the rule expressly excluded such cases, while unproved allegations of suppression could not disqualify the assessee without clear establishment of suppression and due hearing. An exemption for cotton yarn sales to registered exporters also could not be withdrawn for the period in question on the basis of a later departmental clarification, since the earlier consistent assessment practice and non-disclosure of the clarification supported the assessee's claim.

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Issues: (i) Whether the special assessment scheme under Section 12C of the Tamil Nadu General Sales Tax Act, 1959 applies to pending assessments initiated before 01.04.2006; (ii) whether the assessee could be denied the benefit of Section 12C on the ground of suppression or because the assessment was the first year of business; (iii) whether exemption on cotton yarn sales to registered exporters could be denied on the strength of a later departmental clarification contrary to the consistent assessment practice.

Issue (i): Whether the special assessment scheme under Section 12C of the Tamil Nadu General Sales Tax Act, 1959 applies to pending assessments initiated before 01.04.2006.

Analysis: The scheme was intended to expedite and conclude assessments for periods prior to the effective date, and its language required such assessments to be completed on the basis of returns and prescribed declarations, subject to the statutory conditions. The fact that pre-assessment proceedings had already commenced did not exclude the operation of the scheme where the assessment remained pending as on the relevant date. The circular issued by the departmental authority also supported completion of such assessments without insisting on accounts, wherever the prescribed conditions were satisfied.

Conclusion: The scheme under Section 12C was held applicable to pending assessments as on 01.04.2006.

Issue (ii): Whether the assessee could be denied the benefit of Section 12C on the ground of suppression or because the assessment was the first year of business.

Analysis: Denial of the scheme depended on the statutory conditions in Rule 15(5-E), including the absence of suppression beyond the prescribed threshold and exclusion of the first or last year of business. In one set of matters, the first-year-of-business bar directly applied and justified refusal of the scheme for that year. In the other matters, the allegation of suppression was founded on a disputed characterisation of the transactions, and the materials did not conclusively establish suppression to the standard required to exclude the assessee from the scheme. The absence of personal hearing also weighed against sustaining the assessments.

Conclusion: The benefit of Section 12C was rightly denied for the first-year assessment, but could not be denied on the basis of unproved suppression in the other matters.

Issue (iii): Whether exemption on cotton yarn sales to registered exporters could be denied on the strength of a later departmental clarification contrary to the consistent assessment practice.

Analysis: The exemption notification had been consistently applied in the assessee's earlier and later assessments. The later clarification relied upon by the department was neither furnished to the assessee nor shown to justify disturbing the settled practice for the prior period in question. In these circumstances, the principle of consistency and the absence of timely disclosure of the clarification supported the assessee's claim for exemption.

Conclusion: The exemption could not be denied for the assessment period in question, and the assessee succeeded.

Final Conclusion: The impugned assessment orders and notices were set aside in the substantial relief granted to the assessee, with one limited assessment year sustained on the statutory exclusion from the expedited scheme and the remaining challenges decided in the assessee's favour.

Ratio Decidendi: A transitional expedited assessment scheme must be applied to pending pre-effective-date assessments where the statutory conditions are met, and exclusion from such a scheme on the ground of suppression requires clear establishment of suppression rather than a mere dispute on classification or interpretation of tax liability.

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