What is CDSL easi and how do I register?
‘CDSL easi’ is a portal by CDSL (Central Depository Services) where you can view and keep track of your DEMAT holdings.
To register, go to https://www.cdslindia.com/ and select 'Login to - New System Myeasi (BO/CM)'
On the login page, click on Register for Easi
On the registration page, you need to enter your BO ID (16 digits) and PAN number with the Date and Month of your date of birth.
Visit console.zerodha.com/account/demat to find the DP ID and DP account number/beneficiary number (BO ID).
Refer to this article to know-how.