Hello,

After spending full week on language changing requirement on service portal. i finally come with the solution.

Note-1. Widget must be made Public.

Note-2. Before all of these please activate I18N: Internationalization and All required Language Plugins.

Ps- For more Information please foloow this Link https://community.servicenow.com/community?id=community_blog&sys_id=566e22eddbd0dbc01dcaf3231f961917