why are you specific for brahmins? the only reason i am asking, is that, there are probably more, if you take the caste tag out.
i can help find a spot in vishranthi, if it is an old woman. but if she lives by her caste tag, she can look elsewhere.
or is it for some sad situations, where the parents have been kicked out to the streets, by their children. even here, i think, going by caste, you may limit yourselves, as even brahmin run charities, do not exclude others. poverty and abandonment knows no caste, and does not discriminate by caste, i think.