Tax treatment for District Mineral Foundation Trusts: specified DMF receipts recognised as authority income subject to compliance and audit. Notification under clause (46) of section 10 of the Income-tax Act designates District Mineral Foundation Trusts constituted under section 9B of the Mines and Minerals Amendment Act as a class of Authority for specified income: leaseholder contributions under the DMF Rules, interest and penalties from leaseholders, interest on DMF funds, savings account interest, and interest on excess funds in term deposits. The designation is subject to conditions: no commercial activity, unchanged activities and income across years, filing income-tax returns per clause (g) of sub-section (4C) of section 139, and filing an audited return with a chartered accountant's certificate.