Problem with Airtel regaring my private tracker blocking

Hi

This is not the first issue that I am experiencing after getting Airtel broadband connection. And this time Airtel has blocked a private tracker which I was visiting daily. There is no problem in opening the homepage of the website but after typing username and password, when I click on log in button, I get nothing but just a blank page. Initially I was thinking that it is an issue because of the browser, but later I noticed that I can access the webpage without any problem when access it on my computer via my friend’s Tata photon. I can also view that site if I use proxy but I am not able to that with my Airtel connection. Is this problem is with me only, or anyone else has the same issue with their favorite websites/tracker? If there is any fix then please reply.