Exemption notification under section 10(23C)(iv) confers notified charitable status on Arya Vaidya Sala for specified assessment years. Central Government notifies 'Arya Vaidya Sala, Kottakkal (Kerala)' under sub-clause (iv) of clause (23C) of section 10 of the Income-tax Act, 1961, designating the entity as a notified institution for the period covered by the specified assessment years and thereby conferring statutory notified status under that provision.