Well, GMail has locked me out! Apparently my mistake being I tried reconnecting to GMail Talk too many times, too soon. It thought I might be a remote script trying to get in! The screen shot of the error should say it all!
All I can do right now is to wait for them to bring it back. So anyone who wants to e-mail me till then, please do so at aditya.v.mukherjee(at)gmail(dot)com. I shall try to get back to you as soon as possible! I can't blame GMail for being too secure, but c'mon Google. Slightly better script detecting methods here?
[Update]: Ok, its back online! :)