The amendments revise definitions of liquid assets by including units of liquid mutual funds with a minimum credit risk value of 10 and specific risk classifications. The changes relating to Special Purpose Vehicles (SPVs) clarify their status, including continued classification even after termination of concession agreements, subject to specified conditions. For PPP projects, exemptions are provided where holding structures are restricted by agreements or regulations. Investment norms are also updated by lowering the credit risk threshold from 12 to 10 and expanding permissible categories.