Tax approval for research institutions requires separate research accounts and annual audited returns to authorities. The Indian Law Institute, New Delhi, is approved as an Institution for research-related tax purposes subject to conditions: maintain a separate account for sums received for scientific research; furnish annual returns of scientific research activities to the prescribed authority by 30 April each year; and submit audited annual accounts showing income, expenditure and balance sheet to the prescribed authority and the concerned Commissioner of Income-tax by 30 June each year.