By மூலம், Fair use,
Pandit Iyothee Thass

C. Iyothee Thass (20 May 1845 – 1914) was an Indian anti-caste activist and a practitioner of Siddha medicine. He famously converted to Buddhism and called upon the Paraiyars to do the same, arguing that this was their original religion.Iyothee Thass was born Kathavarayan on 20 May 1845 in Thousand Lights, a neighbourhood in Madras (now Chennai), and later migrated to the Nilgiris district.