Appellate admission of legal grounds and section 153A additions require search-linked incriminating material, not survey evidence.

A purely legal additional ground challenging the validity of an assessment can be admitted at the appellate stage under the Tribunal's wide jurisdiction and Rule 11, provided it raises a point going to the root of the matter, requires no fresh evidence, and causes no prejudice; the ground was therefore entertained. Additions under section 153A cannot be sustained unless they are linked to incriminating material found in a search under section 132 or requisition under section 132A, and material gathered only in a survey under section 133A does not satisfy that requirement; the additions were therefore unsustainable and were deleted.

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Issues: (i) Whether an additional legal ground challenging the validity of the assessment could be entertained at the appellate stage. (ii) Whether additions under section 153A could be sustained when the material relied upon arose from a survey under section 133A and not from search or requisition material.

Issue (i): Whether an additional legal ground challenging the validity of the assessment could be entertained at the appellate stage.

Analysis: The appellate jurisdiction under section 254(1) is wide, and Rule 11 permits a new ground to be urged with leave where it is purely legal and goes to the root of the matter. A ground affecting the legality of the assessment can be admitted if no fresh evidence is required and the opposing party is not prejudiced. The Tribunal therefore treated the oral additional ground as maintainable.

Conclusion: The additional ground was rightly admitted and entertained.

Issue (ii): Whether additions under section 153A could be sustained when the material relied upon arose from a survey under section 133A and not from search or requisition material.

Analysis: Section 153A is triggered by a search under section 132 or a requisition under section 132A, and additions in such proceedings must be linked to incriminating material found during search or requisition. The impounded notebooks, diaries and loose papers on which the assessments rested were found in survey proceedings under section 133A, and the assessment order did not refer to any seized or incriminating search material. In the absence of search-linked incriminating evidence, the foundation for additions under section 153A was missing.

Conclusion: The additions under section 153A were unsustainable and were directed to be deleted.

Final Conclusion: The appeals succeeded because the additional legal objection was accepted and the impugned additions were held to be legal foundation under section 153A.

Ratio Decidendi: Additions under section 153A must rest on incriminating material found in a search or requisition, and material unearthed only in a survey under section 133A cannot sustain such additions.

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