Appellate power under income tax law cannot introduce a new source of income outside the original assessment framework.

The first appellate authority under the Income-tax Act has wide enhancement powers, but those powers are confined to matters arising from the original assessment and income sources already considered by the assessing officer. It cannot direct enquiry into, or effectively introduce, a fresh source of income not dealt with in the assessment. Income outside the original assessment framework must instead be addressed through the separate statutory mechanisms of reassessment or revision. The article therefore distinguishes permissible enhancement within the existing assessment from impermissible assumption of jurisdiction over a new source of income.

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Issues: Whether the first appellate authority under the Income-tax Act, 1961 can direct enquiry into and effectively introduce a new source of income not considered in the original assessment.

Analysis: The appellate power under section 251(1)(a) is wide and extends beyond the specific grounds raised by the assessee, but it remains confined to matters arising from the assessment and to income sources already considered by the assessing officer. The settled distinction drawn by the earlier authorities is between correction or enhancement within the existing assessment framework and the impermissible introduction of a fresh source of income. For income not considered in the assessment, the Act provides distinct remedies through reassessment and revision under sections 147/148 and 263, indicating that the first appellate authority is not intended to exercise that jurisdiction.

Conclusion: The first appellate authority cannot introduce or direct enquiry into a new source of income not dealt with in the original assessment.

Final Conclusion: The reference was answered by affirming the earlier view that the appellate authority's power does not extend to a new source of income, and the matter stood disposed of accordingly.

Ratio Decidendi: The first appellate authority's wide powers do not include the power to assess a new source of income not considered by the assessing officer; such income can be dealt with only through the specific statutory mechanisms for reassessment or revision.

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