It's more like a dictionary lookup[0] than some general pattern. Also there are many regional variations. So if you have come across a particular lastname befor

It's more like a dictionary lookup[0] than some general pattern. Also there are many regional variations. So if you have come across a particular lastname before you happen to know they are brahmin. [0] - https://www.momjunction.com/articles/brahmin-caste-surnames-last-names-meanings_00649615/ https://www.momjunction.com/articles/brahmin-caste-surnames-...