Income of trade unions [Section 10(24)] :

Any income under the heads ―Income from house property‖ and ―Income from other sources‖ of a registered trade union, within the meaning of the Trade Unions Act, 1926, formed primarily for the purpose of regulating the relations between workmen and the employers or between workmen and workmen will be exempt. Further, this exemption is also available in respect of an association of such registered unions.