When i build new app and go to Auth, I do not see AppID, ClientID, Client Secret
Hi @achaudhary22! Welcome to the Community-- happy to have you here 
It looks like your app is still in a draft state, so it will not show that auth until fully published. Check out the bottom of my page when I open a drafted app in the same state as yours in my own account:
I recommend reviewing the App Info panel and the rest of the Auth panel to see if there is any other required information missing.
Best,
Kennedy
Ok i get it that the app is in draft state.
But even after filling all the details I am unable to publish it. Can you please help?
Could you share a full page screenshot and the message that shows up when you hover over the button to create the app or publish it?
Best,
Kennedy