Hello Praveen,
Just to cross verify if the ESH components are all setup properly, you can check the search using the report 'ESH_TEST_SEARCH'. Please follow these steps:
1) Login to SAP GUI and run the transaction se38.
2) Enter report 'ESH_TEST_SEARCH' and execute
3) In the screen that appears enter the following values:
Object Type : SRMNXP02_CATALOG
Check Freestyle Search checkbox
Search Term : *a*
4) Execute
If you are able to see the results here, the search connectors are setup properly and we need to look into the application. Else, ESH setup should be done again here.
And in addition, kindly make sure if the user you are searching with has proper authorizations for the available product categories.
Please check this and let me know.
Regards,
Riswan