Shiva In Mi, Redmi mobiles have inbuilt Security Antivirus with daily updates and Device care to maintaining the device to clear the cache …. I don’t know…. These features are required or not required and all….
Jay first thing, android doesnt really need anti virus unless you sideload some shady app or APK. second thing, you can clear cache from google files. or any 3rd part cleaner. or you can clean cache manually by checking size of cache from google files - apps.