Diversion of income has multi-facets. Diversion arises where income is applied in a particular manner under statutory or contractual obligation or under the provisions of a document under which the company is constituted viz., memorandum of article of association or a firm has come into existence. In these circumstances, the principle that has emerged is that if a person has alienated or assigned the source of his income so that it is no longer remains his income, he cannot be taxed upon the income arising after the assignment of the source. In such event, it is not income of the assessee at all