Reassessment limitation under income tax law: a valid reopening under clause (a) cannot bypass the four-year bar in clause (b).

A reassessment validly initiated under section 34(1)(a) for nondisclosure of interest income does not permit the Income-tax Officer to bypass the separate four-year limitation applicable to items falling only under section 34(1)(b). Once reassessment is lawfully opened, escaped income may be examined, but the statutory distinction between clauses (a) and (b) remains controlling. Losses fully disclosed in the original assessment could not therefore be reopened and disallowed under clause (b) after the expiry of four years. The four-year bar was treated as a substantive fetter on jurisdiction, and the reassessment of the sugar mill losses was held invalid.

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Issues: Whether, on a reassessment initiated under section 34(1)(a) of the Indian Income-tax Act, 1922, the Income-tax Officer could reopen and disallow losses which had been fully disclosed in the original assessment and which, if at all, fell only under section 34(1)(b) after the expiry of four years.

Analysis: The reassessment proceedings were validly initiated because there had been nondisclosure of interest income, bringing the case within section 34(1)(a). Once reassessment is lawfully opened, the Income-tax Officer may examine escaped income beyond the item mentioned in the notice. However, the statute draws a clear distinction between clause (a) and clause (b): clause (a) is not subject to the four-year bar, while clause (b) is. That time limit cannot be defeated indirectly by using a clause (a) notice to reach items which otherwise fall only under clause (b). The court treated the four-year limit under clause (b) as a statutory fetter on the power to reopen such items.

Conclusion: The Income-tax Officer had no jurisdiction to reassess the sugar mill losses under section 34(1)(b) after the expiry of four years, even though reassessment had been validly initiated under section 34(1)(a). The question was answered in the negative and in favour of the assessee.

Ratio Decidendi: A valid reassessment initiated under section 34(1)(a) cannot be used to circumvent the separate four-year time bar governing items that fall only under section 34(1)(b).

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