Airtel mobile service provider
Unsbcribe of Y Zone

I accidently subscribed to Y! Zone on my mobile (Airtel India is my service provider). Rs.10 is deducted from my account every week for past 1 months. I don't use this service, I want to unsubscribe, but I don't know how to. Please do the needful at the earliest and unsubscribe the Y! Zone subscription. My number is 9892644103-Mukund Gadeka