sentences:  The actual sect of their origin is not known.There is a perception that the ancestors of some Aarama Dravidulu Brahmins of Andhra Pradesh migrated in the 13th and 14th centuries, from Saurashtra to the banks of the River Cauvery in Tamil Nadu, whence some of them migrated to Andhra Pradesh, by all accounts before the 18th century.They are held to have been the land-lords and head-men of the Brahmin villages called "agraharams".