Kumbalathu Sanku Pillai (1898-1969) was a social reformer, politician and freedom fighter from Kollam in erstwhile Travancore.

[2] He was also the founder and first president of Panmana Ashramam made in commemoration of Chattampi Swamikal.

[3] Sanku Pillai was born at Prakkulam, Kollam in a Nair landlord family named Thottuvayalil Bungalow on 15 February 1898 and after his childhood he moved to Panmana.

[4] He was a disciple of Chattampi Swamikal and invited the saint to Panmana in his late years of life.

In the end of 1940's he was in forefront of protests against Pattom Thanu Pillai by Indian National Congress members.