Hi Shalini,
in addition to the comments from Ian I have the following hint for you - please change the path to your i18n.properties file which is maintained in the translation project.
You should add the folder webapp - so the path would be: webapp/i18n/i18n.properties
In our tutorials the i18n folder is direct under the project folder - in the EmployeeApp the folder i18n is under the webapp folder.
Kind regards,
Bea