Best judgment assessment under sales tax law upheld where turnover rejection rested on rational, material-based findings

In best judgment assessment under the Tripura Sales Tax Act, a valid rejection of returned turnover may rest on rational grounds such as unusually low profit margin, higher closing stock, and failure to maintain proper accounts. Once the assessing authority reaches a non-arbitrary satisfaction that the return is incorrect or incomplete, a reasonable estimate and some guesswork are permissible. Writ jurisdiction under Article 226 does not permit reappreciation of the assessment record or substitution of a different view unless the assessment is shown to be irrational, arbitrary, or unsupported by relevant material. The result is that the assessment based on the relevant material is sustained and writ interference is not justified.

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Issues: Whether the High Court, in exercise of writ jurisdiction under Article 226 of the Constitution of India, could interfere with a best judgment assessment made under the Tripura Sales Tax Act, 1976 on the basis of a reduced profit margin, higher closing stock, and non-maintenance of proper accounts.

Analysis: The assessment authority had rejected the returned turnover on rational grounds, namely the assessee's substantially lower profit margin compared with earlier years and comparable dealers, the disproportionately higher closing stock, and the absence of proper account maintenance. Section 9 of the Tripura Sales Tax Act, 1976 empowered assessment of taxable turnover, and Section 34 required proper accounts to be maintained. The Court held that once the assessing authority reaches a valid and non-arbitrary satisfaction that the return is incorrect or incomplete, some amount of estimate and guesswork is permissible in best judgment assessment. The writ court does not sit in appeal over such statutory findings and cannot reappreciate the materials unless the assessment is shown to be irrational, arbitrary, or unsupported by relevant material.

Conclusion: The interference made by the learned single Judge was unwarranted, and the best judgment assessment upheld by the appellate authority and the Tribunal was sustained.

Final Conclusion: The assessment stood restored and the writ challenge failed because the statutory authorities had adopted a relevant and rational basis for rejecting the returned turnover and estimating the taxable turnover.

Ratio Decidendi: In best judgment assessment, if the assessing authority rejects the returned turnover on relevant and rational grounds, the resulting estimate supported by material and reasonable nexus cannot be disturbed in writ jurisdiction merely because another view is possible.

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