Visit the website of any of the DPs. Most likely, your existing stockbroker also provides DP services.  If you are new to share trading, then he will ask you to open a Demat cum trading account. You can do so online by -  -Signing on the website by providing an email ID and mobile number -Apply for Demat cum trading account opening -Provide details like name, date of birth, PAN -Upload KYC documents -Select plan, if any and the trading segment. If you want to open only a Demat account then - -Ask for a Demat account opening form -Fill in the Demat application form -Upload/ provide KYC details