I had submitted my App to App store and it got rejected.
Reason for rejection is app not compatible with iPhone 5.
iPhone 5 Optimization Requirement - Your binary is not optimized for iPhone 5. As of May 1, all new iPhone apps and app updates submitted must support the 4-inch display on iPhone 5. All apps must include a launch image with the -568h size modifier immediately following the portion of the launch image's filename. Launch images must be PNG files and located at the top-level of your bundle, or provided within each .lproj folder if you localize your launch images. Learn more about iPhone 5 support and app launch images by reviewing the iOS Human Interface Guidelines and iOS App Programming Guide.
How to Update Your Apps for the 4-Inch iPhone 5 Display is a good tutorial.
Also do not forget to Add a -568h launch image.