[2][3][4] On the caste system in India, Periyar dealt harshly with the practice of discrimination and its subordination of the different levels it created in society.
Periyar felt that a small number of cunning people created caste distinctions in order to dominate over society.
[5] Periyar explained that the caste system in south India is, due to Indo-Aryan influence, linked with the arrival of Brahmins from the north.
Ancient Tamil Nadu (part of Tamilakkam) had a different stratification of society in four or five regions (Tinai), determined by natural surroundings and adequate means of living.
[6] Periyar also mentions that birds, animals, and worms, which are considered to be devoid of rationalism do not create castes, or differences of high and low in their own species.
He gives examples of rituals such as christening, house warming, marriage, and for puberty, that they are for the Brahmin's gain as the only ones to conduct these occasions.
Graded inequality has got so much into the Hindu blood that general intelligence is warped and refused to mend even after English education and higher standards of living".
[12][13] Periyar demanded its withdrawal and launched protests against the Kula Kalvi Thittam which he felt was caste-based and was aimed at maintaining caste hegemony.
In the course of over the past fifty years, thousands of weddings between people of different communities and without the intervention of Brahmin priests have taken place as a result of the influence that the Self-Respect Movement has exerted on society.
Therefore, he left the Congress, supported the Justice party, started the Self-Respect Movement and finally got the government of Madras to pass a law on communal representation in education and employment.
[16] Kumarasami Kamaraj was thoroughly convinced that Periyar was only demanding justice for the non-Brahmins who had been neglected and exploited by certain sections of the people for hundreds of years.
As a result of Periyar's devoted service for the cause of the under privileged, scheduled caste men and women occupy high positions in government offices and also serve as doctors and engineers.