Tax approval under section 35(1)(ii) for a research institution requires separate research accounts and annual audited filings. Approval is granted to the Medical Research Foundation, Madras as an Institution under clause (ii) of sub section (1) of section 35 of the Income tax Act, subject to conditions: maintain a separate account for research sums; furnish annual returns of scientific research activities to the prescribed authority by 30 April; and submit audited annual accounts and a balance sheet to the prescribed authority and the concerned Commissioner by 30 June. The approval is effective from 18 May 1983 to 31 March 1984.