What Is eDIS and the CDSL TPIN?

When you sell shares held in your demat account, you may be asked to authorise the sale with a TPIN and OTP. This is eDIS — the electronic way of authorising delivery of your shares to the exchange.

What eDIS is

eDIS (electronic Delivery Instruction Slip) is the digital replacement for the old paper slip that told the depository to move your shares out when you sell. Now it’s done electronically, with your explicit consent.

The TPIN and OTP

• The TPIN is a permanent PIN you set once with the depository (CDSL/NSDL). You reuse it for future authorisations.
• When you sell, you enter the TPIN and verify with an OTP sent to your registered mobile/email — confirming you authorised the shares to leave your account.

Why it exists

eDIS exists to protect you. It ensures that shares can only be delivered out of your demat with your direct authorisation each time — a safeguard that became important after SEBI curbed the broad Power of Attorney brokers once used.

eDIS vs DDPI

Many investors now opt for a DDPI (Demat Debit and Pledge Instruction) instead — a limited, standardised authorisation that lets your broker debit shares for settlement without you entering a TPIN/OTP on every sale. It’s more convenient while still being tightly scoped, unlike the old blanket POA.

If you sell occasionally, eDIS works fine; frequent traders often set up a DDPI. Either way, your shares move only with proper authorisation. Education only, not advice.