The energy resource-contrived is the most difficult aspect of WSN and that energy cannot be re-charged. When every sensor node is needed to move ahead the data packet to the sink node, the problem emerges there. Through unmoving, listening and retrans-mitting, the accessible energy in every node could be lost in this procedure because of collisions as well as over-hearing. Network topology management and energy min-imization is done due to Cluster-based WSN routing pro-tocols. In clustering in WSN, sensor nodes are sorted into little disjoint clusters, where every cluster has an organizer referred as CH. In this paper, energy efficient clustering techniques related to WSNs are discussed and com-parative analysis is also performed.