Basically they are Hindu Nairs, who follow the matrilenial family system.
KARUMATHIL PUTHIYAVEEDU family traces its origin from Kumaranalloor, Ponnani, Kerala, INDIA from the family of KARUMATHIL .
Karumathil house is said to have been originated from PANNIYUR, Anakkara. Kerala, and is known as Panniyur Karumathil House. This house is still at Panniyur. Later on Karumathil house split into different branches like Karumathil Pullara, Karumathil Pokkavil, Karumathil Nellekkattu, Etc.
History reveals that Smt.AMMU AMMA (daughter of Smt. KARUMATHIL KUNJU AMMA and Chembilveetil Sri. CHATTU MENON) was married to KATTAYATTU Sri.GOVINDA MENON, the then Prime Minister of the Zamorins. Kattayattu Sri. Govinda Menon brought Smt AMMU AMMA to calicut and started the branch as KARUMATHIL PUTHIYAVEEDU, at PANNIANKARA. KOZHIKODE (CALICUT) . Smt Ammu Amma is believed to have come from Nellekkattu branch of Karumathil house. Nellekattu Karumathil House is situated in Kumaranellore. The Nellekkattu house is still at Kumaranellur.