A MANET is a kind of wireless mobile network that can be easily established with the help of few infrastructure less connections. In such networks, every node is independent of its own and therefore can act as a router and execute the job of routing as well. In a public channel, the main reason of use the MANET is to propel the data protect between source and the destination. Trust mechanism is being used as substitute to the cryptographic technique. Trust mechanism protected the data forwarding by separating the nodes with malevolent intention using the trust value on corresponding nodes. It is an infrastructure-less network where the one mobile device link with other device wirelessly. Every device in MANET changes its movement and links in any direction often. Routing in MANET is the method of transfer the information from start node to destination node. For the period of the routing process, load balancing and energy consumption are the challenging issue to get better the network lifetime. In addition, security plays main part during the data transmission from source node to destination. This paper focuses routing performance in the Mobile Adhoc Networks (MANETs) relies on the support of the individual nodes that form the network. Secured routing is process of preserving the information from unauthorized users during data transmission in MANET. In this paper reviews for various researchers have carried out their previous work related to routing mechanism in MANET by using trade model.