Does Auth api call in Zoho books api integration needs to be location based?

Does Auth api call in Zoho books api integration needs to be location based?

Hi Team,

               Recently we completed the development of api integration of our app with Zoho books api. While testing and onboarding our customers we observed that the auth call did not return back the correct account from zoho. 

The auth call is made by forming below link

https://accounts.zoho.com/oauth/v2/auth?scope=ZohoBooks.fullaccess.all,ZohoCRM.modules.ALL&client_id=<client Id>&response_type=code&access_type=offline&redirect_uri= redirectURI&state=<customer state data>

Does this domain accounts.zoho.com dependent on which location the zoho account created? Like if account is created in india region that what should be the domain? 

Secondly, during client "user consent" phase we make this auth call, how do we figure out the location of the zoho account?

Thanks,

Jiten