Tax approval conversion: perpetual approval under section 35(1)(ii) converted to limited approval affecting institution status. Perpetual approval granted to the Indian College of Allergy and Applied Immunology, New Delhi, under section 35(1)(ii) of the Income-tax Act, 1961, has been converted to a limited approval valid up to 30-6-1986 by notification dated 12-9-1986, superseding the earlier perpetual approval issued in 1973.