You can change your email address/mobile number by following these steps-

1. Go to www.tagmango.com and login using your registered email id(for Non-Indian Users) / mobile number(for Indian Users.)
2. Once logged in, click on your Profile Picture on the top right corner and select the View Profile option from the drop down menu.
3. Select the Change number/email tab and you'll get the options to update your email/mobile number via OTP.