Investors who have not submitted a physical copy of their PoA need to now authorise their sell orders via e-DIS (Delivery Instruction Slip). This adds an extra layer of security for you while selling stocks or ETFs.
Whenever you want to sell anything from your Demat account, you will need a 6 digit TPIN from CDSL. You would have received the same on your registered mobile/email address from CDSL.
If you have not received it or have forgotten it, you can read below for instructions to generate a new TPIN.