Sriram,
There's quite a few reasons that could cause that. Your pictures have all the settings blurred out, which makes it difficult to understand what may be wrong.
From your description, the most common cause is that your Site URL is incorrect in your Facebook Application. In your browser, after you try to login, if you open the Error Console (it's different to open in each browser) and look for Javascript errors, there may be a message coming up telling you what's gone wrong. If you find that, let us know what the message is and that will help.
Beyond that, the only thing we could do is see the site in action to test and understand what's going wrong. If you can provide the URL and/or credentials to access it, that would help. You can Private Message me by clicking the arrow under my picture (<
) and hitting the mail icon.
Thanks,
Alex