Mobile Ad-hoc NETworking is concept of communication, which means a communication temporary network without any form of centralized administration. Every node in this network acts both as host and a router to forward packets for other node. Due to the absence of the centralized administration, MANETs are easily attacked by malicious nodes. To decrease the attacks from malicious nodes, a concept is introduced is Trust in MANETs to calculate the trust of neighbors nodes to find a trusted path to send data between source and destination nodes. To maintain the MANETs some protocols are developed AODV, AOMDV by introducing the Trust concept the new protocol developed is AOTDV.