Reassessment under section 34 requires non-disclosure of material facts; estimated income cannot be reopened without statutory basis.

Reassessment under section 34 of the Indian Income-tax Act, 1922 was upheld for an unexplained credit of Rs. 25,000 because the return and assessment records did not disclose it as the assessee's own income, and the officer had material for a reasonable belief of non-disclosure of primary facts. Reopening was not justified for the Cochin business income enhanced from an estimated figure to a higher amount, because the assessee had only made an estimate when filing the return, there was no material showing knowledge of the exact income at that time, and the later notice was also beyond the four-year limit under section 34(1)(b). The text states that an estimated item cannot be reopened piecemeal without the statutory basis and time compliance.

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Issues: (i) Whether reassessment under section 34 of the Indian Income-tax Act, 1922 was valid in respect of the addition of Rs. 25,000. (ii) Whether reassessment and enhancement under section 34 was valid in respect of the Cochin business income increased from Rs. 50,000 to Rs. 1,02,511.

Issue (i): Whether reassessment under section 34 of the Indian Income-tax Act, 1922 was valid in respect of the addition of Rs. 25,000.

Analysis: The return and assessment materials did not disclose the sum of Rs. 25,000 as part of the assessee's own income, and the Income-tax Officer had material giving rise to a reasonable belief that there had been non-disclosure of material facts. For the purpose of section 34(1)(a), the assessee's obligation extended to a full and true disclosure of his income, and the existence of primary facts in the books did not prevent reopening when the true nature of the credit was not disclosed.

Conclusion: The reassessment was valid in respect of the addition of Rs. 25,000, and this part of the reference was answered against the assessee.

Issue (ii): Whether reassessment and enhancement under section 34 was valid in respect of the Cochin business income increased from Rs. 50,000 to Rs. 1,02,511.

Analysis: The assessee had only estimated the Cochin business income in the return, and there was no material showing that he knew the exact income when the return was filed. In the absence of such material, section 34(1)(a) was not attracted. Section 34(1)(b) was also unavailable because the notice was beyond the four-year period. A provisional estimate in the original assessment could not justify reopening by way of a piecemeal assessment.

Conclusion: The enhancement of the Cochin business income was unwarranted, and this part of the reference was answered in favour of the assessee.

Final Conclusion: The reference succeeded only in part: reopening was upheld for the unexplained credit of Rs. 25,000, but the further enhancement of the Cochin business income was set aside for want of jurisdiction under section 34.

Ratio Decidendi: Reassessment under section 34 of the Indian Income-tax Act, 1922 is justified only when there is material showing non-disclosure of material facts or a legally sufficient basis for reasonable belief, and an estimated item in the original assessment cannot be reopened later in the absence of such material and within the statutory time-limit.

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