package jenkins.war including custom plugins from github

[Siva Kumar Reddy G]

I am trying to package Jenkins with customization. Customization here means including few plugins as part of Jenkins.war. I am able to add Jenkins provided plugins successfully. The build is successful and war file created. 

Added Jenkins.war to web apps folder of tomcat. Started Tomcat and browsed localhost. Selected "Install suggested plugins". I get error saying: An error occurred during installation: No such plugin: custom-plugin

Please help. Thanks in advance.