Exemption under section 35(1)(ii): approval granted to a research institution, tax benefit notification effective from April. Dharmsinh Agricultural Research and Development Foundation Pvt. Ltd., Bombay, was approved by the prescribed authority for purposes of the income-tax exemption on contributions to scientific research; the approval, notified by S.O.1684 dated 3-5-1973, is effective from 1 April 1973 and valid for two years.