Woothampatti Punnaivana Ayya Soundarapandian was a leading figure in Nadar Mahajana Sangam and became the first Nadar member of the Madras Legislative Council upon a recommendation by P.T. Rajan in 1920. Nadar's family had previously supported and worked for the electoral victory of P.T.Rajan. He is known for his effort to associate the Nadar community with the Self-Respect Movement founded by Periyar E. V. Ramasamy. He was known as the uncrowned king of the Nadar community.

Sir Ponnambala Thiaga Rajan was the First Minister of Madras Presidency from 4 April 1936, to 24 August 1936. He was also the last President of the Justice Party. P. T. Rajan was born in a Thondaimandala mudaliar family in Uthamapalayam. His ancestors were from Kanchipuram. He attended The Leys School, Cambridge and later, Jesus College, Oxford. He graduated in history and law, and practiced as an advocate for some time before joining the Justice Party.