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Routing is the major research issues in the Wireless Mesh Network (WMN). Ad-hoc networks routing protocols can be applied for WMN, but due to limited success & less efficiency there is need of more efficient routing protocols. In Infrastructure Wireless Mesh Routing Architecture (IWMRA) routing protocol, source node initiates a path establishing process whenever path breaks. This is not an ideal method in WMN where every nodes rather than source and destination in the path are motionless. One way of overcoming this is by initiating the local route repair by destination node. In this paper, we propose an active path updating procedure APULAR for quickly repair the broken path. Moreover, to improve throughput and to reduce the co-channel interference, we use multiple interface with multi channels. We are considering 4-hop as an interference range and will use fixed channel assignment within the mesh routers to reduce the inter flow interference. Our procedure is simulated in NS2 and compared with AODV – MI3 and APULAR-MI2, APULAR-MI3, APULAR-MI5. Simulation results show that our protocol performs better AODV in key performance metrics like packet delivery ratio, control overhead, average throughput and end-to-end delay.