Abstract- In despite of the geographical location, internet connection is provided always and everywhere with the implications of designing of Mobile ad hoc network (MANET). Different types of applications of MANETs are included environment monitoring, military and disaster recovery. The resource-constrained environment of MANET is not allowed to perform the communication processes easily. For the network nodes, the limited batteries are utilized as an equipment. Throughout this process, the major challenging issue is replacing and recharging of these batteries. Within the MANET, the nodes are added without considering the circumstances. To process the communication among nodes, the trustworthy and reliable techniques should be inculcated. The definition of trustworthiness is about the opinion of a node on the other node with the numerical representation. The trust is computed based on the previous communication among current nodes. To address the limitations, a technique of modified multipath routing is needed. By using the network layer, efficiency is achieved in terms of energy utilization as the MANET is an infrastructure-less network and a peer-to-peer network. The routing path is chosen according to the network nodes’ current residual condition with the improved modified multipath routing protocol. The proposed technique is performed efficiently in terms of network stability and network’s lifetime than the existing methods like MRPC and EAODV. To determine the proposed method’s effectiveness, NS2 software is utilized to assess the simulation results.