Android app is not showing the given app name when apk is installed on device independently

I am giving app name in android project-> options ->Android Application-> Application Name (Myapp)& Package Name(Myapp).
After signing when I am trying to install the apk independently on device, its showing Company.Myapp.Android.Android but expected is Myapp.apk and Myapp with launch icon when installed.

I have already treied the following:

1) Changed the Xamarin Project name to Myapp

2) Project->Options->Output->Assembly Name to Myapp

Any suggestions?