The Securities and Exchange Board of India (Sebi) has instructed stockbrokers to establish mechanisms to prevent fraud and market abuse, effective August 1, 2024, for Qualified Stock Brokers (QSBs). Other brokers have staggered deadlines based on their size, with the largest implementing changes by January 1, 2025. Sebi's circular emphasizes surveillance systems, employee obligations, reporting mechanisms, and a whistle-blower policy.