Prevent Unauthorized Transactions in your demat / trading account Update your Mobile Number/ email Id with your stock broker / Depository Participant. Receive information of your transactions directly from Exchanges on your mobile / email at the end of day and alerts on your registered mobile for all debits and other important transactions in your demat account directly from NSDL/ CDSL on the same day. - Issued in the interest of investors. | KYC is one time exercise while dealing in securities markets - once KYC is done through a SEBI registered intermediary (broker, DP, Mutual Fund etc.), you need not undergo the same process again when you approach another intermediary. | No need to issue cheques by investors while subscribing to IPO. Just write the bank account number and sign in the application form to authorise your bank to make payment in case of allotment. No worries for refund as the money remains in investor s account.