User 'xyz' belongs to organization_1 and user 'abc' belongs to organization_2.
After few days user abc has been transffered to organization_1 and xyz to organization_2.
Is there any way we can change organizations of these users.
I think you'll need to use external authorization like LDAP to do that. The problem is not moving the user but with updating roles and privileges. Unless it's supported in the new version, this wasn't possible (I think there is now user export/import - I haven't tried this but it may be possible to import to a different organization).
The way I did beside LDAP was to develop my own tool to manage users outside JasperReports Server and use REST api to update information on the server.