Consensus: not exactly.. but you can download the program and run it... I haven't tried the online chat... maybe that's the part that users outside Karntatka can't use, but for all other purposes it seems to work.
blr_p: yes, of course it would work if you just selectively shut down computers that are showing virus-related activity - that's what my college used to do.. that is, till they made it mandatory to use the (free) Norton anti-virus that they provided to everyone, with which they could just push the definitions on to all the computers on the network.
and of course, I am not suggesting that it be made mandatory to use AV provided by Airtel: just that you have to have some form of up-to-date AV software. And I do think for the purpose of most average users, they should adopt such a policy because even now most people don't know how important AV software is, forget realizing that they have to keep it up-to-date, and that 3 month free trial of McAffee they got with their computer is not serving the purpose 2 years later.
I don't know the numbers, but I am sure that if they coudl get rid of such virus activity, they could free up some of their bandwidth. At one point last year I was getting hit by such viruses at least once in 3-4 seconds!!