Well I have had an Airtel broadband connections for years now.
Off the late they have started charging fees for unsubscribed services. E.g. The recent one was an additional Rs. 1200 for a anti-virus installed. I have not asked or subscribed for the anti-virus to be installed. I went to the Airtel office to inquire about this and the answer I got was that it has been remotely installed on all PCs that use Airtel broadband. I already have a 50 US$ paid Norton anti virus. Then why does the anti virus be installed. That too without my consent. In such a case even your personal information can be tracked without your consent.
Well the bill can shoot up to more than Rs. 150 per month by such additional services.
Regards,
Chandu