In this paper, we design and formulate a trust-based routing protocol for secure transactions, such as military and disaster relief operations, banking in mobile ad hoc networks (MANETs). The proposed approach is showing the idea of a trust model in the network layer of MANET.AODV is ad hoc on demand distance vector, this protocol starts the route specially when some node claims to send data. In AODV whenever a link breaks an error message is sent indicating the link and packet sending is dropped. In our proposed scheme a packet is sent through alternative path. In this approach a trust node is made with neighbors. Simulation results shows that proposed scheme has less packet loss and packet ratio delivered is more.