Hi Sunil,
I'd suggest you take a look at the help guide here Navigation Tree - SAP NetWeaver Business Client - SAP Library note the section:
For NWBC, you can insert the following objects in the menu tree:
- Transaction code
- Web Dynpro ABAP application
- BSP application
- Web address or file
- Generic Web address (URL template)
- Web client UI applications
So if you want something to be visible in the menu in NWBC you need it to be one of the above. In your screenshot you have added a Service Authorization (I think)... that won't show you anything in the menu.
Hth,
Simon