Prevent unauthorized transactions in your DEMAT account → Update your Mobile Number with your Depository Participant. Receive alerts on your Registered Mobile for all debit and other important transactions in your demat account directly from CDSL on the same day. | KYC is a one-time exercise while dealing in securities markets. Once KYC is done through a SEBI registered intermediary, you need not undergo the same process again when you approach another intermediary.Prevent unauthorized transactions in your DEMAT account → Update your Mobile Number with your Depository Participant. Receive alerts on your Registered Mobile for all debit and other important transactions in your demat account directly from CDSL on the same day. | KYC is a one-time exercise while dealing in securities markets. Once KYC is done through a SEBI registered intermediary, you need not undergo the same process again when you approach another intermediary.