Dynamic Source Routing (DSR) is the simple and efficient On-Demand routing protocol in MANET. In DSR, the forwarded data packets are overheard and stored in the intermediate nodes. It aids to avoid up-to-date route information leads to inadequate route lifetime. Therefore, the DSR permits an alternative route for communication when the primary link fails to transmit the data packets. However, it consumes more time to establish an alternative route to the same destination node. In the First fold, a Preemptive DSR (PDSR) and a Link Availability-Based Routing Protocol (LBRP) is proposed to avoid...