Castes and Tribes of Southern India/Periya
Periya (big). — Periya or Periyanān has been recorded as a sub-division of Kāralan, Kunnuvan, Ōcchan,and Pattanavan. The equivalent Peru or Perum occurs as a sub-division of the Malayālam Kollans and Vannāns and Perim of Kānikars. Periya illom is the name of an exogamous illom of Kānikars in Travancore.