I live in Middle East. I have a question. Let's say my first name Is "X" . My second name or middle name Is "Y". And my Last/Family name is "Z". My birth certificate has my name as "X Y " . All my school report cards and other documents have got the same on them. BUT I want to use my Family name "Z" too. What if write my name as "X Y Z" when I apply for CNIC? And the same when I apply in a Professional college? And same when I apply for a passport? I mean it still has my First (X) and Middle name (Y) but with addition of Last name(Z). Help me out.