there’s a new student portal that’s operational now, and it’s really nice. you should have got a mail from the HAS explaining everything about the portal to you.
if you don’t live inside iitm, (or go through the insti’s proxy to access the page), you might have some trouble trying to access the forum, because the server keeps running out of bandwidth. so, if you are in the insti, you should add students.iitm.ac.in to your ‘bypass proxy’ list.
PS : when you do login to the portal, do check out the campus atheists thread yours truly started!