Rejection of unreliable accounts and reasonable income estimation based on business data was upheld on the facts discussed.

Where account books and supporting records do not permit a reliable deduction of true profits, the taxing authority may reject the accounts under section 13 and proceed to a reasonable estimate of income. The text notes that missing ticket records, unavailable counterfoils, and unreliable collection sheets supported rejection of the books. It further explains that an income estimate based on mileage, seating capacity, past collections, and a contingency margin is permissible if it has a rational business basis and is not conjectural. The discussion concludes that such estimation was upheld on the facts described.

---

---

Issues: (i) Whether there was material to support the finding that the assessee's account books did not disclose true profits; (ii) Whether the Tribunal was justified in estimating transport earnings by adding Rs. 50,000 to the receipts shown by the assessee.

Issue (i): Whether there was material to support the finding that the assessee's account books did not disclose true profits

Analysis: The proviso to section 13 applied only if the assessing authorities could not properly deduce income and profits from the method of accounting. The record showed that some tickets were not accounted for in the collection sheets, the counterfoils necessary for verification were not produced, and the collection sheets themselves were found unreliable for checking the receipts. On this material, the authorities were entitled to conclude that the accounts did not disclose the true profits.

Conclusion: The finding was supported by material and was validly reached in favour of the Revenue.

Issue (ii): Whether the Tribunal was justified in estimating transport earnings by adding Rs. 50,000 to the receipts shown by the assessee

Analysis: After rejecting the accounts, the assessing authority estimated receipts on the basis of mileage, seating capacity, and prior collection experience, and allowed a margin for contingencies. The Tribunal further reduced the addition. The estimate was not shown to be based on mere conjecture or imagination, and the method adopted had a rational basis connected with the business and past results.

Conclusion: The estimate of an ion of Rs. 50,000 was justified and the issue was decided in favour of the Revenue.

Final Conclusion: The reference was answered against the assessee on both questions, and the estimation of income from the transport business was upheld.

Ratio Decidendi: Where reliable material is lacking and the accounts do not permit deduction of true profits, the taxing authority may reject the accounts and make a reasonable estimate based on relevant business data and past results, provided the estimate is not arbitrary or purely conjectural.

---