How do I change my registered mobile number and email id?
To change your mobile number or email id, Go to https://console.zerodha.com/profile
Here, under the personal tab, you'll be able to see details like Date of birth, registered email, registered mobile and PAN.
Click on the 'pencil icon' to edit your registered email id or mobile no.
Here, enter the new e-mail or number you want to update. Once you do, click on 'Confirm'
It will take up to 24 hours for your new email id/mobile no. to be updated on our records.
Note: January 17, 2019, onwards we will not be charging any fee for email id/mobile no. modifications