The wireless usage has increased rapidly and there is a huge shift in users' expectations. Ad Hoc networks can provide better features if there is a proper QoS multicasting strategy developed. The On Demand Multicast Routing Protocol (ODMRP) is a group communication protocol with low control overhead. There are many schemes that have worked on the development of ODMRP, but very few have provided a quality aware mechanism. A new technique has been proposed in this paper for reducing the control overhead and for supporting QoS routing in wireless Adhoc networks by estimating the available bandwidth.