Research approval under income-tax exemption granted with reporting, accounting and renewal conditions, including audited annual accounts. Approval under the income-tax research exemption is granted to the Centre for Study of Man and Environment, Calcutta, subject to conditions: maintain separate accounts for research receipts; furnish annual returns of scientific research by 31st May; submit audited annual accounts, income and expenditure statements and balance-sheet to the prescribed authority, the Central Board of Direct Taxes and the concerned Commissioner by 30th June; and apply for extension at least three months before approval expiry.