Notification under section 10(23C)(iv) recognizing Arya Vaidyasala Kottakkal for tax treatment in the assessment year. Notification under section 10(23C)(iv) of the Income-tax Act, 1961, notifies 'Arya Vaidyasala Kottakkal' for the purpose of that sub-clause for the assessment year 1989-90 by Notification No. S.O.946 dated 25-2-1991, issued by the Central Government exercising powers conferred by the provision.