Keystore name     :- build
Keystore password :- build@28
Alias name        :- buildalias

copy build-release.apk to app folder
cd to app folder

keytool -genkey -v -keystore build.keystore -alias buildalias -keyalg RSA -keysize 2048 -validity 10000



Rajkumar Arya
Dakshith Technologies
Dakshith Technologies
Gurgaon
Haryana
IN
yes

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore build.keystore build-release.apk buildalias

copy signed apk to C:sdk\sdk\build-tools\25.0.3
cd to C:\sdk\sdk\build-tools\25.0.3
zipalign -v 4 build-release.apk build.apk
copy final zipaligned fbc.apk to app\fbc folder
visit https://play.google.com/apps/publish and upload final apk to it.