Smartphone's are widely used as navigation aid now-a-days. Most of the smart phones provide a built-in navigator or map application with some sort of GPS capability. These navigation applications provide accurate navigation for outdoor location using GPS unit of the Smartphone. But providing accurate navigation inside a closed building is still a challenge. Several solutions are available in the market for indoor navigation using Bluetooth, Wi-Fi and AGPS. But their reliability of navigation in all given scenarios is still a challenge.