Data Validation - How to restrict the selection of the same value from the named list

I have create a named list 'Catagory' in sheet1. Now I want to use this list in sheet2 in such a way that restrict the selection of the values already selected from the list.

Or (Allow selection of any value only once)


Please check the attached XL sheet.

Ques.xlsx

Thanks in advance..!

Karan