vijaya,
i find it disturbing, that in this day and age, that someone, cannot treat another human akin to our own.
how can we poison our minds to such exclusivity? even at the most racist times in the usa, the blacks were allowed to be cooks. even in the most racist times in nazi germany, the jewish medicine was still respected. islam or christianity, in their original edicts do not have anywhere anything close to shunning one's own kind, to the level that you are demanding.
what is in it, that your God wants from you, that someone's birth has deemed (or damned) him worthy (unworthy) of receving services in the name of God in your household.. i cannot believe that one can honestly, by selectively practising discrimination, one will be pleasing one's gods and supposedly ancestors.
i think it is a shame of this kind, transcends the observation of privacy of practice of religion. hopefully this kind of tribal adherence is on the wane, and conigned to the dungheap of history within our lifetime.