How to avoid CDSL TPIN and OTP while selling securities in Zerodha?

To avoid authorising securities using CDSL TPIN and OTP every time a sell request is placed, clients can submit the Demat Debit and Pledge Instruction (DDPI). DDPI is a document that allows a broker to debit the securities from the client’s demat account and deliver them to the exchange. To learn more, see What is Demat Debit and Pledge Instruction (DDPI), and how can it be activated?