BSNL Mobile Odisha - nexGTv + subscription without consent

I am a BSNL Odisha prepaid customer and my mobile number is 9437282843. Today i.e. 5 July 2012 at 9.37 AM, a message came from some nexGTv telling "Thank you for showing interest in nexGTv+. To access mobile TV, pls click http://axle.nexg.tv". Immediately came another message saying "<82 M YES> you have requested subscription to nexGTv + Gold Pack bulletin of Rs 99. To confirm, pls forward this SMS to 57776". Again, another message came from 57776 telling "Your subscription to nexGTv + Gold Pack of validity 1 MONTH is confirmed. You have been charged Rs 99. For access, click http://axle.nexg.tv"

Before I could understand anything, these all happened and my balance was reduced by Rs 99. I became dumb founded. I have not sent or forwarded any message to subscribe to any service. I have not subscribed to any such service either. How anybody could do all these things without my consent or acceptance?

Will the BSNL Odisha explain how this could happen? Can I get back the balance that has been deducted?

Pramod Kumar Nayak