Hi @VIJAY_1099552
We have checked the logs for your user, and as the error message indicates, you are passing an invalid client ID or redirect URL.
It appears that you are using your user ID as the client ID, but the client ID should be the API key of your app.
Please update this and try again — once corrected, you should be able to log in successfully.
@VIJAY_1099552
This request is being blocked because of the .php extension at the end of the URL.
If you place the redirect URL parameter before the client ID in the query string, the request will work correctly.
Also request you to change your documentation and write clearly that redirect_uri parameters should not be last parameters so other newcomers should not be distracted and waste 4-5 days at first steps