Please explain the following situation of Kufu: - 

Will there be Kufu in today's races, like Pathan, Sayed, Shaikh, Patel, etc? 

Situation: A boy from a Pathan family proposed for a girl in a Patel family. The girl's parents say that they don's want to give their daughter to a Pathan family. that is the only reason of their denial. They agreed on everything, because the girl is insisting to marry this boy, but the parents say that it is not Kufu. Please explain. 

Answer: