Create auth token api not working for .eu domain

I've created an account in crm.zoho.eu domain. When I try to create auth token from mobile using below api, I got following error.

Request URL:
https://accounts.zoho.eu/apiauthtoken/nb/create?SCOPE=ZohoCRM/crmapi&EMAIL_ID=netrolo33@gmail.com&PASSWORD=thisismypassword

Response:
#
#Wed Feb 21 11:28:05 CET 2018
CAUSE=GET_METHOD_NOT_ALLOWED
RESULT=FALSE

Note: The account netrolo33@gmail.com is created in accounts.zoho.eu. For accounts created in zoho.com working fine.

Please reply ASAP.

Thanks,
Guna