Abstract: Wireless Sensor Networks (WSNs) differ from conventional network in deployment, application and working mechanism. Sensor networks are always resource constraint and small in size, computation and memory storage. In WSN, sensor nodes are normally distributed openly in harsh environment and have open access for inside and outside menaces which could adversely affect their proper functioning. These threats became the source for choking of resources and loss of energy. This study focused on operational and architectural challenges for handling secure, reliable routing in wireless sensor network and proposed new mechanisms to secure reliable energy efficient routing protocol. The proposed methods were based on adding secondary route and secondary gateway to the clustering network. The simulation results for the proposed methods showed that overall network energy efficiency increased by approximately 25% and the possible security threats decreased by about 41% when compared to the clustered network. The paper presented the motivation for the proposed approaches and details of the simulation tests.