Research institution approval under tax law requires compliance and annual filings by April and separate research accounting obligations. Bhaskaracharya Pratishthan, Pune is approved as an approved research institution under the tax provision for scientific research in the category 'Association,' subject to maintenance of separate accounts for non agricultural/animal/fisheries/medical research funds, and to filing an annual research activity return with the prescribed authority and an annual return and statement of accounts with the Commissioner by 30 April each year; the approval is limited to a specified three year period.