There is still a fair usage policy:
"Up to 15GB usage speeds will be 3.1Mbps, beyond 15GB speeds will be optimized to CDMA 1x( 144Kbps )"
http://www.mtsindia.in/mblaze/tariff-guide.html
http://www.mtsindia.in/mblaze/mblaze-999-freeusage.html
Hope Reliance and TATA will reduce their tariff as well soon after this.