O. Thanikachalam Chetti

Diwan Bahadur O. Thanikachalam Chetti (December 1874 – 21 July 1929) was an Indian lawyer and politician who is considered to be one of the pioneers of the Dravidian Movement.

Thanikachalam Chetti was born in December 1874 and educated at the Madras Christian College and Madras Law College.

Thanikachalam Chetti participated in the early sessions of the Justice Party and was responsible for drafting the resolutions in the Madras Legislative Council which eventually became the Communal G. O. of 1928.

In 1921, there was a major strike by the factory workers at the Buckingham and Carnatic (B & C) Mills in Madras.

Thanikachalam Chetti and the Raja of Panagal took the side of caste Hindu workers and strongly criticized the actions of the Dalit workers and police.