Edgar Thurston,
Castes and Tribes of Southern India…
“ They follow the marumakkatāyam law of inheritance (in the female line) . The tāli (marriage badge) is tied by their own caste men. Nambūdris, or their own caste men, unite themselves in sambandham with Nampidi females. Nampidis are allowed to consort with Nāyar women. At public feasts they are not privileged to sit and eat with Nambūdris. Their women are called Manolpads.”Nambiyassan.—A division of the Ambalavāsis. It is noted, in the Travancore Census Report, 1901, that “the Nampiassans, otherwise called Nampiyars or Nampis, have at present no temple service of any kind. ”
