1. For Stock Broking Transaction: Prevent unauthorized transactions in your account, update your mobile number/email IDs with your stock brokers. Receive information of your transactions directly from Exchange on your mobile/email at the day. | 2. For Depository Transaction: Prevent unauthorized transactions in your Demat account, update your mobile number/email IDs with your Depository Participant. Receive alerts on your registered mobile for all debit and important transactions directly from CDSL/NSDL. | 3. KYC is a one-time exercise in the securities market. Once KYC is done with any SEBI registered intermediary (Broker, Mutual Fund, DP etc.), you need not do it again. | 4. When subscribing to an IPO, no cheque is required. Enter your bank account number or UPI ID in the IPO form and authorize your bank to block funds. If not allotted, your funds remain in your bank account.