Investor transaction alerts required: stock exchanges must send SMS/e-mail transaction details to investors upon verification. Stock exchanges must send daily SMS and e-mail transaction details to investors in equity and derivative segments. Stock brokers shall upload client contact details on exchange platforms, excluding intermediary contacts and permitting shared contacts only for immediate family on written request. Exchanges shall verify contacts by SMS/e-mail or letters and, after investor confirmation, send transaction details generated using the investor's Permanent Account Number. Exchanges must notify brokers of discrepancies, may fund alerts from investor-service listing fees, implement infrastructure within four months, amend bylaws, audit implementation, publicize the facility, and report status to the regulator.