Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is to start with various leveled cluster based routing protocol effectively utilized as a part of the Wireless Sensor Networks (WSN). In this paper, different upgrades utilized as a part of the first LEACH protocol are inspected. The fundamental operations, favorable circumstances and restrictions of the altered LEACH protocols are compared contrasted with other similar protocols. Furtherthe issues of LEACH is understood and how the other protocols are tackled from enhancing base protocol. © Research India Publications.