I am from Saurashtra Community. I realized that my ancestors have surname of Iyer (both my father and mother side) . I have never considered myself as Brahmin. I was shocked to see that my both of my grandparents have surname of Iyer .It seems this is contradictory to have this surname as I am don't belong to that community . I have heard/seen some of Saurashtrians had surname like Achary , Rao and Sharma which is fine because this will not conflict with original Iyer from TamilNadu. I am curious to know that why did they used this surname if it is completely unrelated. I asked this same questions to my parents they said few generations back my ancestors are doing Purohitam so they used this surname and they a. My question is can a non south person use this surname?