I use to login with my official email id on dba.se.
I want to update this i want to use my personal email-id for login instead of official id.
how i will change this here i don't see any options for the same.
If you're wanting to use a different Google Account to log in with, just go to your user page and click the "my logins" link:
You can then click the "add more logins..." link to start the process of adding more credentials to your account.