Loose slips alone cannot justify an income addition without corroborating evidence of unaccounted receipts.

Estimation of undisclosed income cannot rest on loose slips alone when there is no corroborating material such as sale bills, bank entries, or other evidence of unaccounted receipts. The analysis notes that while a false explanation may be relevant and some guesswork is permissible in making a fair estimate, the validity of any addition depends on the facts of each case. On the facts discussed, the Tribunal found the Assessing Officer's estimate unsupported by independent evidence, so the addition was not justified and no substantial question of law arose.

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Issues: Whether addition based on loose slips and an estimate of unaccounted income was justified, and whether any substantial question of law arose from the Tribunal's interference with the assessment.

Analysis: The survey yielded loose slips relating to wages, but the assessee's explanation about their relevance was found unacceptable only on facts. The Court noted that a false explanation may be relevant and some guesswork may be permissible, yet the fair estimate of undisclosed income depends on the facts of each case. The Tribunal had held that, in the absence of corroborating material such as sale bills, bank entries, or other evidence of unaccounted income, the Assessing Officer's estimation on the basis of loose slips alone was not justified.

Conclusion: The addition based solely on the loose slips and the Assessing Officer's estimate was not warranted, and no substantial question of law arose. The dismissal of the revenue's appeal was therefore justified.

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