Mutual fund investments in REITs and InvITs limited by asset and issuer concentration under new regulations. Amendment adds definitions for InvIT and REIT, renumbers a clause, and inserts a Seventh Schedule provision allowing mutual funds to invest in REIT and InvIT units subject to fund-level issuer concentration limits and scheme-level NAV exposure limits, with an exception for index funds and sector- or industry-specific schemes focused on REITs and InvITs.