Mutual fund fees: permitted scheme expenses defined and total expense ratio ceilings set with additional limited charge rules. Regulation 52 requires clear identification and appropriation of scheme expenses, permits AMCs to charge disclosed investment and advisory fees, and lists permissible recurring scheme expenses (marketing, brokerage, registrar, trustee, audit, custodian, investor communication, insurance, winding-up, statutory advertisements, and other Board-approved costs) including scheme-specific items (storage for gold/silver ETFs, rating fees, listing fees, real estate maintenance costs, commodity storage). It sets ceilings for the total expense ratio by scheme type and AUM slabs, allows limited additional charges like brokerage within specified limits, and assigns responsibility for excess expenses to the AMC or trustee/sponsors.