CST assessment limitation: Kerala HC held regular assessment proceedings must begin within a reasonable five-year period, not four years.

CST assessments conducted after the commencement of the KVAT Act remained governed by the CST framework and its rules, because section 9(2) of the CST Act applies State machinery only subject to the CST Act. Since the CST (Kerala) Rules did not prescribe a separate period for initiating regular assessments, the Court treated five years as the reasonable limitation, drawing from the longer period recognised for reassessment. Assessment notices and the assessment order issued beyond that period for assessment year 2005-06 were time-barred and quashed, while the remaining proceedings were left intact. The assessee was also allowed to pursue the statutory appeal against the surviving order, with delay to be condoned.

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Issues: (i) Whether assessments under the Central Sales Tax Act, 1956, after the commencement of the Kerala Value Added Tax Act, 2003, had to be governed by the limitation applicable to regular assessments under the CST framework or by the five-year period under the KVAT Act; (ii) whether the impugned assessment notices and one assessment order were barred by limitation.

Issue (i): Whether assessments under the Central Sales Tax Act, 1956, after the commencement of the Kerala Value Added Tax Act, 2003, had to be governed by the limitation applicable to regular assessments under the CST framework or by the five-year period under the KVAT Act.

Analysis: By virtue of Section 9(2) of the Central Sales Tax Act, 1956, the machinery of the State sales tax law applies to CST proceedings only subject to the CST Act and the rules made thereunder. The CST (Kerala) Rules, 1957 contemplate regular assessment under Rule 6(5) and re-assessment under Rule 6(7). The KVAT Act introduced self-assessment under Section 21 and re-assessment under Section 25(1), but that change did not displace the CST rules where they specifically governed the field. As no specific limitation for initiation of regular CST assessments was prescribed, the period reasonably applicable was taken to be the longer period already recognised for re-assessment.

Conclusion: The applicable reasonable period for initiating CST regular assessment proceedings was held to be five years, not four years.

Issue (ii): Whether the impugned assessment notices and one assessment order were barred by limitation.

Analysis: The notices and assessment relating to the assessment year 2005-06 were issued beyond the five-year period and were therefore time-barred. The remaining notice and assessment did not suffer from that defect. The Court also permitted the assessee to pursue the statutory appeal against the surviving assessment order, with delay to be condoned because the writ petition had been pending before the Court.

Conclusion: The time-barred notice and assessment were set aside, while the surviving assessment proceedings were left undisturbed.

Final Conclusion: The writ petitions succeeded only to the extent of quashing the belated CST assessment proceedings for the barred year, and the rest of the assessment action was allowed to continue or be pursued in the ordinary statutory manner.

Ratio Decidendi: Where the CST Act adopts the State machinery subject to the CST Act and its rules, and the rules do not prescribe a separate initiation period for regular assessment, the initiation of such proceedings must occur within a reasonable time, which may be measured by the longer limitation period applicable to re-assessment.

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