Reasonable belief of escaped income permits reassessment; estimation may rely on unexplained credits and missing vouchers.

Reassessment under section 34 was held valid where the assessing officer, on the basis of information in his possession (absence of Colombo books, unexplained credit entries), had a reasonable belief that income escaped assessment; the possibility that the original premise later proved mistaken did not vitiate jurisdiction, so reassessment was sustained. On estimation, unexplained credit balances, failure to produce vouchers and marked gross profit disparities supported the factual finding that certain entries were fictitious and purchases inflated; the Rs. 10,000 addition was held non-arbitrary and adequately supported by material, against the assessee.

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Issues: (i) Whether the reassessment of the joint family under section 34 of the Income-tax Act was valid; (ii) Whether there was material to sustain the estimated addition of Rs. 10,000 as the income of the assessee.

Issue (i): Validity of reassessment under section 34 of the Income-tax Act.

Analysis: The issue required examination of whether the Income-tax Officer had, in consequence of information in his possession, reason to believe that income had escaped assessment so as to invoke section 34(1)(b). The Court accepted that a mere change of opinion by the officer does not justify reassessment but held that where there exists information leading to a reasonable belief of escapement - even if the original premise proving that information is later shown to be mistaken - the reassessment proceedings are not vitiated. The absence of produced Colombo books and the credit entries in the family accounts provided information from which the officer could reasonably entertain the belief that income had escaped assessment.

Conclusion: Reassessment under section 34 was valid and the proceedings were within jurisdiction; conclusion against the assessee.

Issue (ii): Sufficiency of material to sustain the estimated addition of Rs. 10,000.

Analysis: The material relied upon included unexplained credit balances in the family accounts in favour of Colombo concerns, failure to produce vouchers and Colombo account books, and a marked disparity in gross profit rates between transactions with the Colombo concern and other outside purchases. The finding that certain entries were fictitious and that purchase values were inflated was a finding of fact supported by these materials, permitting estimation of escaped income. The Court found the estimate non-arbitrary and supported by evidence.

Conclusion: There was sufficient material to sustain the estimated addition of Rs. 10,000; conclusion against the assessee.

Final Conclusion: Both referred questions are answered affirmatively against the assessee, confirming the reassessment and the estimated addition; the assessee shall bear costs.

Ratio Decidendi: Where an assessing officer, in consequence of information in his possession, has a reasonable belief that income has escaped assessment, invocation of section 34(1)(b) is lawful even if the original factual premise for that belief is later shown to be incorrect; an assessing officer may estimate escaped income on the basis of available materials including unexplained entries and absence of vouchers.

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