Additional evidence on appeal requires a satisfactory explanation; new pleas cannot rest on fresh material alone, with limited remand ordered.

Additional evidence at the appellate stage may be admitted only where it is necessary for proper adjudication and the party gives a satisfactory explanation for not producing it earlier. A new plea may be entertained when the supporting material is already on record, but not where both the plea and the evidence are introduced for the first time without justification. On the facts, the letter sought to be filed for the first time was rightly refused, while the remaining documents justified reconsideration by the first appellate authority after hearing both sides. The assessment was therefore set aside only to the limited extent of remand, without any decision on the merits of the rental income claim.

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Issues: Whether the assessee could be permitted to adduce additional evidence and raise a new plea at the appellate stage, and whether the matter should be remanded for fresh consideration.

Analysis: The appellate power to admit additional evidence is discretionary and must be exercised to do substantial justice. Evidence already available earlier, if not produced without adequate explanation, cannot ordinarily be received to patch up omissions or remissness. A new plea can be entertained where supporting material is already on record, but not where both the plea and the supporting evidence are newly introduced without a satisfactory explanation. On the facts, the letter sought to be produced for the first time was rightly refused, while the remaining relevant documents warranted reconsideration by the first appellate authority after giving both sides an opportunity to be heard.

Conclusion: The request to adduce the newly obtained letter and the plea founded on it was rejected, but the other additional materials were directed to be considered on remand.

Final Conclusion: The appeal succeeded only to the limited extent that the assessment was set aside and the matter was sent back for fresh decision on the admissible materials, without any adjudication on the merits of the rental income claim.

Ratio Decidendi: Additional evidence at the appellate stage may be admitted only where it is necessary for proper adjudication and the party offers a satisfactory explanation for not producing it earlier; a new claim unsupported by existing record material cannot be raised by producing fresh evidence without such justification.

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