Margin pledge implementation timeline extended to ensure system readiness and compliance by market infrastructures and participants. Implementation of the circular requiring margins to be given by way of pledge/re-pledge in the depository system is extended from the original effective date to October 10, 2025 to permit depositories to complete system development and testing. Stock Exchanges, Depositories and Clearing Corporations must notify members, publish the circular, implement systems and procedures to ensure compliance, and amend bye-laws, rules and regulations to effect the change; the circular is issued under statutory regulatory powers to protect investors and regulate the securities markets.