It looks like I am not alone! Airtel has been doing this for quite a while now. I have 2 connections of Airtel and on both connections, somehow Hello tunes got activated automatically. And when I call the Customer Care, I get an answer that I only have send an SMS for the activation. Now you really need lot of time to fight with these people because its really difficult to prove that we haven't send such an sms, they say they have it in their records. Weird!!!!
