As in the modern era the use of sensor network starts yielding a great importance in variety of applications. This paper is carried out in this particular field. The paper will concentrates on how to conserve energy while transferring the data from sender towards receiver in a most efficient way so that the network lifetime is enhanced. Wireless sensor networks term is refers to a kind of networking that doesn't require cables to connect with devices during communication. The transmission is take place with the help of radio waves at physical level. The paper would be carried out in network layer through the mechanism of routing.