Final sales tax assessment cannot be reopened or refunded merely because a later judgment changes the legal position.

A final sales tax assessment could not be reopened or refunded merely because a later judgment in another assessee's case declared a different legal position. The tribunal noted that the assessment had attained finality and was not further challenged, so the later ruling did not create a fresh cause of action to disturb concluded proceedings. Rectification under section 55 of the Tamil Nadu General Sales Tax Act, 1959 was also unavailable because it is limited to errors apparent on the face of the record and cannot be used to unsettle a completed assessment. The petition was therefore rejected.

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Issues: Whether an assessee can seek refund and reopening of a completed sales tax assessment on the basis of a later judgment rendered in another assessee's case, and whether rectification under section 55 of the Tamil Nadu General Sales Tax Act, 1959 could be invoked for that purpose.

Analysis: The assessment for the relevant year had attained finality and had not been challenged further by the assessee. The later judgment in another assessee's case could not be used to reopen a concluded assessment already binding between the parties. A subsequent declaration of law does not, by itself, give a fresh cause of action to disturb final proceedings. Section 55, being a provision for correcting errors apparent on the face of the record, could not be stretched to reopen the completed assessment on the facts presented.

Conclusion: The assessee was not entitled to reopening or refund on the basis of the later judgment, and the rectification plea failed.

Final Conclusion: The original petition was rejected because the completed assessment remained final and was not amenable to reopening on the strength of a later decision in another case.

Ratio Decidendi: A final assessment cannot ordinarily be reopened or refunded merely because a later judgment in another assessee's case declares a different position in law, and rectification provisions cannot be used to unsettle such finality unless an apparent error on the record is shown.

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