1. The assessee in this case is Rai Bahadur S. N. Ganguli who owns two cinema houses in the town of Ranchi. He also is a partner in two firms, and holds a major part or shares in the United Motor Works, Ltd. He has invested money in several concerns, and owns Government securities and several house properties. For the assessment year 1947-43, Rai Bahadur S. N. Ganguli returned an income of Rs. 24,815/-. The Income-Tax Officer did not reject the account books produced by the assessee, but he added a sum of Rs. 15,000/-which was the amount of high, denomination notes encashed by the assessee on 19-1-1946, through the Ranchi Branch of the Bengal Central Bank, Ltd. The amount encashed was not mentioned in the books of account produced by the assessee. The Income-Tax Officer called upon the assessee to explain the source of the high, denomination notes. Not being satisfied with the explanation, the Income-Tax Officer treated the amount of Rs. 15,000/-as secreted profit of the assessee. The assessee appealed to the Appellate Commissioner; but the appeal was dismissed on 24-1-1949. A further appeal was taken by the assessee to the Income-Tax Appellate Tribunal. At this stage, the