European Scientific Journal June 2013 edition vol.9, No.18 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 270 ENHANCEMENT OF MULTIPATH ROUTING PROTOCOL FOR ROUTE RECOVERY IN MANET Pooja, Student of M.Tech Ajay Dureja, Assistant Prof. M.D.U Rohtak, PDM College of Engineering for Women, B’Garh, India Abstract Route failure is a vigorous issue in MANET that is mainly responsible for interrupted service between source and destination, so there should be some mechanism to handle this issue as soon as it is detected, to continue the transmission. In this paper we have proposed “Enhancement of Multipath Routing Protocol for Route Recovery (EMPRR) in MANET”, a routing protocol which provides multipath discovery, efficient utilization of bandwidth and controlled traffic load route recovery at the time of failure. Aproach: At the time of failure the recovery node is selected from the neighboring nodes of node detecting failure ,by performing route discovery from node detecting failure and the neighboring node which is first to send the route reply packet from the destination to the node detecting failure is selected as recovery node and if the two neighbors of failure node send the route reply packet at the same time then the node with higher available bandwidth is selected in the mean while we send stop transmission till route recovery packet to source node through reverse path, as soon as new path is selected start transmission packet is sent to source to start transmission again and updates its cache by storing new route for transmission. Results: The proposed protocol is efficient in overcoming the problem of stale routes in multipath routing protocols. Also proposed protocol shows significant improvement in packet delivery ratio and reduced end to end delay. Keywords: MANET, Multipath Routing Protocol, Fault Tolerance, Link Failure Introduction Mobile Ad Hoc Networks (MANET) MANET is a self organizing network with autonomous mobile nodes connected dynamically in arbitrary manner through wireless links. These autonomous nodes can communicate with each other if and only if they are in transmission range of each other. As ad hoc network is economically