Tax exemption under section 35AC: government approves institutions' projects as eligible for specified deductions across financial years. Notification approves specified institutions and their projects as eligible for deduction under section 35AC, providing for each listed project the estimated cost, the maximum amount allowed as deduction and the financial years for which the approval and deduction entitlement apply; it covers health, education, vocational, watershed and social welfare projects, includes corpus-fund and recurring/non-recurring cost specifications, and notes later substitutions to certain cost figures.