Navigation in login to tabs application does not seem to work

Hey Iontroins, I am having really hard time getting navigation to work in ionic 1.x.
I have a sign In page where user logs in and lands on tabs application tab-dash. Any link in tab-dash to nested screen does not seem to work. For your information I have included in index.html and fact I do not want to use script tag as shown in The navigation works perfectly when I navigate between Sign-In to Sign-Up and Forgot Password. Once I land tab-dash. It does not work.

Please help. Actually I am stuck with this and cannot get this working. Am I missing anything.