Mobile Ad Hoc Network (MANETs) is a Collection of autonomous self organized mobile nodes, connected with wireless links. This network doesn't follow any fixed topology as the nodes of this network are mobile devices. As per the basic rule of networking every node must co-operate with other node to route the packets. As this network doesn't have a fixed topology conventional routing protocols may not suitable to this environment. Many routing algorithms have been proposed for MANETs. It is an important problem to model Quality of Service requirements on these types of algorithms. In This paper I have provided a study of recent routing trends in MANETS.