AndroidManifest.xml is a file in android which contains essential information about android app to the android build, android OS and many more details.
The Manifest.xml file declares the following: -
It contains android package's name, it's build tools and location of code entities.
The components of the app which includes activities, services, content providers, broadcast receivers, etc
The permissions that the app needs in order to access protected parts of system or apps.
The hardware and software features the app requires which affects which devices can install the app from Google.
Study Material
Quiz