WSN’s are collection of sensor nodes. Power of these sensor nodes is limited and also increase the lifetime of these sensor nodes. WSN’s have limited battery power, limited memory and have limited computational power. It consists various parameters like atmospheric pressure; temperature, humidity and heat all are measure or sense by the sensor networks. Today’s WSN’s is an emerging field for research. Wireless Sensor Networks (WSNs) have usage of sensor networks in different areas like military area, health applications, home application, disaster management, sensing environment, etc. Routing protocols are the most challenging issue and it increases the lifetime of battery.