Approval under section 35(1)(iii) requires separate research accounts and annual audited returns filed with tax and scientific authorities. Approval is granted to Sri Aurobindo International Institute of Educational Research as an Institution for purposes of section 35(1)(iii) of the Income-tax Act, subject to conditions: maintain separate accounts for scientific research; furnish an annual scientific-research return to the Secretary, DSIR by 31 May; and submit audited annual accounts showing income, expenditure, assets and liabilities to specified income-tax and DSIR authorities by 30 June. The notification sets the effective period and prescribes the procedure and copy requirements for applying for extension of approval.