- When you open a demat with a stockbroker, the depository sends you a welcome letter. It contains all information related to your Account, including your account number.
- Your Demat Account Number is also mentioned in the transaction summary of your trading account.
If your demat Account is with the NSDL, your demat account number will be a combination of digits and letters - 14 digits preceded by the letters ‘IN’, for example, IN12345678998745.