Rectification cannot reopen a decided DTAA dispute on surcharge and education cess when no patent error exists.

Rectification under section 154 cannot be used to reopen a concluded appellate issue on surcharge and education cess under the India-USA DTAA. The treaty objection had already been argued and rejected in the original appellate proceedings, so the later request amounted to a fresh review of the same controversy rather than correction of a patent mistake apparent from the record. Because a debatable issue requiring reconsideration of the record lies outside rectification jurisdiction, the refusal to revisit the claim was justified and the challenge to levy of surcharge and education cess failed.

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Issues: Whether the rectification application under section 154 could be used to reopen the earlier appellate order on the claim that surcharge and education cess were not leviable under the India-USA DTAA.

Analysis: The assessee had already pressed the same treaty-based objection in the original appellate proceedings, where it was rejected. The rectification request sought a fresh examination of that concluded issue rather than correction of an obvious mistake. A matter that requires reappreciation of the record or reconsideration of a decided controversy is outside the scope of rectification, since a mistake apparent from the record must be patent and not debatable. The treaty issue regarding surcharge and education cess had already been decided against the assessee, and the rectification authority was justified in declining to revisit it.

Conclusion: The rectification application was rightly rejected and the challenge to levy of surcharge and education cess failed.

Ratio Decidendi: Rectification cannot be employed to review or reargue a matter already adjudicated, and only a patent mistake apparent from the record is amenable to correction under section 154.

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