Wireless Sensor Network (WSN) is a wide network consisting of a large number of sensor nodes in it. WSN is used mainly for environmental monitoring and data aggregation purpose. The main aim of an adversary is to attack the sink node which is the aggregation point for the whole WSN. So, first there comes a need to provide the privacy to sink location from the adversary. In this paper, we modified the existing sink location privacy protection scheme by dividing nodes in the network containing multiple sink into different zones in which real packets are forwarded to sink belong to corresponding zones and the intermediate node generating fake packets and sending it to fake sinks. The scheme performance analysis is done for a safe time, throughput, packet delivery ratio, end to end delay, the average energy consumption, normalized routing load and the proposed scheme tries to resist the traffic analysis attack better. © 2015 IEEE.