Doctrine of merger in tax revision is limited to matters actually decided in appeal; limitation runs from the original assessment order.

In tax matters, the doctrine of merger applies only to the same subject-matter actually considered and decided in appeal or revision. Where escaped turnover was not before the assessing authority or the appellate authority, the appellate order did not merge in the later suo motu revisional order on that issue, and the pending revision was not rendered infructuous. Limitation for suo motu revision runs from the original assessment order, not from the appellate order, when the later issue was never in appeal. On that basis, the revisional proceeding was barred by limitation, and the amendment extending time did not save the notice.

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Issues: (i) Whether the appellate order merged in the suo motu revisional order so as to render the pending revision against the appellate order infructuous. (ii) Whether the suo motu revisional proceeding was initiated within limitation, and whether time had to be counted from the assessment order or from the appellate order.

Issue (i): Whether the appellate order merged in the suo motu revisional order so as to render the pending revision against the appellate order infructuous.

Analysis: The doctrine of merger was held to be of limited application in tax matters and to depend on the nature of the superior order and the scope of the statutory appeal or revision. Merger applies only where the subject-matter decided by the superior authority is the same as that decided below. The question of escaped turnover was not before the assessing authority or the appellate authority, and the appellate proceedings concerned different items from those later taken up in suo motu revision.

Conclusion: The appellate order did not merge in the suo motu revisional order on the question of escaped turnover, and the pending revision was not infructuous.

Issue (ii): Whether the suo motu revisional proceeding was initiated within limitation, and whether time had to be counted from the assessment order or from the appellate order.

Analysis: Limitation for suo motu revision under the applicable rules was held to run from the date of the assessment order, not from the later appellate order, because the revisional authority was proceeding against the original assessment order. The amendment extending the period of limitation operated retrospectively, and the notice for revision was issued beyond the permissible period counted from the assessment order. Since escaped turnover had not been considered in appeal, the appellate order did not extend the starting point for limitation.

Conclusion: The suo motu revisional proceeding was barred by limitation.

Final Conclusion: The challenge to the tribunal's order failed, and the order under challenge was not disturbed. The core holding is that merger is confined to matters actually considered in appeal, and limitation for suo motu revision must be computed from the original assessment order where the later issue was never in appeal.

Ratio Decidendi: In tax matters, merger is confined to the same subject-matter actually considered and decided in appeal or revision; an issue not raised or decided in appeal does not merge, and limitation for suo motu revision runs from the original order sought to be revised.

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