Hi rakesh,
You can create modules of related information and functionality under one name in the application menu.
I hope following link will help you :
https://community.servicenow.com/community?id=community_question&sys_id=124007a1db98dbc01dcaf3231f961927
https://docs.servicenow.com/bundle/london-platform-user-interface/page/administer/navigation-and-ui/task/t_CreateAModule.html
Mark helpful/correct if it helps you.
Thanks and regards
Tejal