Rectification and suo motu revision under tax law must rest on apparent errors or disclosed factual basis, not fresh verification.

Rectification under the sales tax statute is limited to arithmetical, clerical or similarly obvious mistakes apparent on the face of the record; it cannot rest on further verification of accounts or reappreciation of material. A rectification order founded on examination of books of account therefore exceeds statutory power. Suo motu revision likewise requires disclosure of the factual basis showing that an assessment is erroneous and prejudicial to the Revenue; a bare assertion without reasons is insufficient. The commentary stresses that both rectification and revisional powers under a taxing statute must be exercised strictly within their statutory limits and on a discernible legal and factual foundation.

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Issues: (i) Whether rectification under the sales tax statute could be made only in respect of a simple mistake apparent from the face of the record and not on the basis of further verification of accounts; (ii) Whether suo motu revisional power could be exercised without disclosing the factual for treating the assessment as erroneous and prejudicial to the interests of the Revenue.

Issue (i): Whether rectification under the sales tax statute could be made only in respect of a simple mistake apparent from the face of the record and not on the basis of further verification of accounts.

Analysis: The rectification power was confined to correction of arithmetical, clerical, or similar obvious mistakes. A mistake had to be apparent on the face of the record and could not be discovered by a verification exercise or by reappreciation of the matter. Since the rectification order was founded on further verification of books of account, it fell outside the statutory limits of the power.

Conclusion: Rectification under section 37(1) was not justified and the assessee succeeded on this issue.

Issue (ii): Whether suo motu revisional power could be exercised without disclosing the factual for treating the assessment as erroneous and prejudicial to the interests of the Revenue.

Analysis: The notice and the revisional order did not disclose the basis on which the assessment was alleged to be erroneous and prejudicial to the Revenue. In the absence of a discernible factual foundation, the revisional authority could not validly invoke the special revisional jurisdiction. The power was meant for cases of illegality, impropriety, or procedural irregularity and not for a bare assertion unsupported by reasons.

Conclusion: The exercise of suo motu revision under section 36(1) was unlawful and the assessee succeeded on this issue.

Final Conclusion: The writ petition was allowed, the revisional order was set aside, and the assessment order was restored.

Ratio Decidendi: Rectification and revisional powers under a taxing statute can be exercised only within their strict statutory limits, and an order invoking those powers must disclose the apparent mistake or the concrete basis for treating the assessment as erroneous and prejudicial to revenue.

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