Rectification jurisdiction cannot reopen a debatable limitation issue or be used as appellate power in disguise.

Rectification jurisdiction under Section 48 is limited to correcting a mistake apparent from the record and cannot be used to reopen a concluded limitation finding by reinterpreting Section 23(7) or the proviso governing remand assessment. The Tribunal had first treated the remand assessment as time-barred on the basis of the date recorded in its earlier remand order, but the later rectification proceeded on a different date and effectively revisited the limitation analysis. Because the issue required fresh interpretation of the limitation provision and involved a debatable question of law, the rectification order was beyond jurisdiction.

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Issues: Whether the Tribunal could invoke the rectification power under Section 48 to reopen its earlier order by reinterpreting Section 23(7) and the applicable limitation for a remand assessment.

Analysis: The earlier order had recorded a clear finding that the remand assessment was time-barred on the basis of the date then taken for the Tribunal's prior remand order. The later order accepted a different date for that prior order and, going further, re-examined the scope of Section 23(7) and the proviso governing limitation. A mistake apparent from the record could be corrected, but a debatable question requiring fresh interpretation of the limitation provision could not be reopened in rectification. Section 48 confers a limited corrective power and not an appellate jurisdiction.

Conclusion: The Tribunal was not justified in using Section 48 to revisit and reinterpret the limitation issue, and the impugned rectification order was beyond jurisdiction.

Ratio Decidendi: Rectification jurisdiction is confined to correcting an apparent mistake and cannot be used to re-argue or re-decide a debatable question of law or to exercise appellate power in disguise.

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