Prevent Unauthorised Transactions in your Trading/Demat Account — Update your Mobile Number and E-mail ID with your Stock Broker/Depository Participant. Receive information of your transactions directly from the Exchange/Depository on your Mobile/E-mail at the end of the day. Issued in the interest of investors.No need to issue cheques while subscribing to IPOs. Simply provide your Bank Account Number and sign the application form to authorise your bank to make payment in case of allotment. Funds remain in the investor’s account until allotment, eliminating refund-related concerns.KYC is a one-time exercise while dealing in securities markets. Once KYC is completed through a SEBI-registered intermediary (Broker, DP, Mutual Fund, etc.), you need not undergo the same process again when approaching another intermediary.