By default IDE genarate a apk like app-debug.apk or app-release.apk file but I need to generate specific name of the Apk of the Ap
app-debug.apk
app-release.apk
Just add
archivesBaseName = "NAME_YOU_WANT"
in the android{} part of your gradle file.
You'll get "NAME_YOU_WANT-release.apk" as name of the generated file.