Section 35AC deduction eligibility: specified institutions and approved social projects listed with capped deductible project costs. The Central Government, under section 35AC, notifies specific institutions and approves named projects or schemes-including health, education, rehabilitation, sanitation and allied community initiatives-pairing each with an estimated cost and a maximum cumulative amount eligible as a deduction over the stated approval period; some entries specify corpus funds and distinguish recurring and non recurring expenses, and certain cost figures have been later substituted by subsequent notifications.