Chapter VI-A deduction applies against gross total income; reassessment based on a mistaken legal premise was invalid.

Deduction under Chapter VI-A, including section 80IB(10), is computed against gross total income subject to the statutory ceiling under section 80A, and is not confined only to business or professional income, though eligible business profits determine the amount available for deduction. On that basis, the deduction was allowed up to gross total income in favour of the assessee. Reassessment under sections 147 and 148 cannot stand where the recorded reasons rest on an incorrect legal premise, and here the reopening was founded on the mistaken view that the deduction could be set only against business income. The reassessment was therefore invalid and bad in law.

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Issues: (i) Whether deduction under section 80IB(10) of the Income-tax Act, 1961 was to be confined to the income from business or profession or could be allowed up to the gross total income; (ii) Whether the reassessment initiated under sections 147 and 148 of the Income-tax Act, 1961 was valid.

Issue (i): Whether deduction under section 80IB(10) of the Income-tax Act, 1961 was to be confined to the income from business or profession or could be allowed up to the gross total income.

Analysis: The deduction under section 80IB(10) falls within Chapter VI-A, and the scheme of section 80A(1) read with section 80A(2) permits deductions from gross total income subject to the ceiling that the aggregate deduction cannot exceed such gross total income. Section 80B(5) defines gross total income as the total income computed before Chapter VI-A deductions. The provision does not impose a restriction that deduction under section 80IB(10) must be limited only to business income, though the eligible business profits are relevant for quantification.

Conclusion: The deduction under section 80IB(10) was rightly allowed up to the gross total income and not restricted to income from business or profession, in favour of the assessee.

Issue (ii): Whether the reassessment initiated under sections 147 and 148 of the Income-tax Act, 1961 was valid.

Analysis: Reopening under section 147 requires reasons to believe that income chargeable to tax has escaped assessment. The recorded reasons proceeded on the premise that deduction under section 80IB(10) could be allowed only against business income, which was held to be contrary to the statutory scheme and the correct legal position. A reopening founded on such a mistaken legal premise was treated as lacking a valid basis for belief and amounted to an infirm initiation of reassessment.

Conclusion: The reassessment proceedings under sections 147 and 148 were invalid and bad in law, in favour of the assessee.

Final Conclusion: The Revenue's appeal failed on merits, and the assessee succeeded in challenging the reopening, resulting in dismissal of the appeal and allowance of the cross-objection.

Ratio Decidendi: A deduction under Chapter VI-A is to be computed with reference to gross total income, subject to the statutory ceiling, and reassessment cannot be sustained when the recorded reasons rest on a misconception of the governing law.

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