I think there is a bug in the forums app.
The bug is:
Please let me know how I can solve this.
You did not read my post minutely.
I said AFTER REGISTERING I click on link that is inside the verification email. I am then taken to a page that says 'Email verified'. Then, when I login it takes me to a page that has validation key and a validation button. When i click on the validation button the page posts back saying 'Email NOT valid'. TRY THE STEPS THAT I HAVE MENTIONED AND YOU WILL UNDERSTAND THE PROBLEM.
CAN SOMEONE HELP ?