Tax exemption notification under section 10(23C)(iv) recognises a leprosy treatment scheme for specified assessment years. Central Government, invoking its authority under section 10(23C)(iv) of the Income-tax Act, 1961, notifies the Greater Madras Leprosy Treatment and Health Education Scheme as recognised for tax-exemption purposes for the assessment years 1979-80 to 1982-83 (Notification No. 1081, File No. 197/51/78-IT(AI)).