What is the validity of my Power of Attorney for demat account?

The limited Power of Attorney (PoA) given to the broker is valid until it’s revoked or you close your demat account. The PoA can be revoked anytime by the customer. Get more detail about Demat PoA: Power of Attorney for Demat Account - Explained with Examples and FAQs How do I safeguard my Demat Account with Power of Attorney to Broker? Are there different types of Power of Attorney? What is the validity of my Power of Attorney for demat account? Are there any charges associated with Demat Power of Attorney? Does broker allows time bound Power of Attorney for Demat Account? Should Power of Attorney be printed on the Stamp Paper? Can I sign Power of Attorney online? Can a Broker misuse the Power of Attorney? Can a Broker withdraw money from my linked bank account using the Power of Attorney I gave? Can I use Broker Pool Demat Account to keep my share and do not give Power of Attorney? Can I trade in Futures and Options without Power of Attorney to my Demat account? My signed Power of Attorney is still in courier. Can I still trade?