Ayya Vaikundar is the central figure and founder of Ayyavazhi, a Tamil tradition that emerged in the 19th century in South India. He is believed to be an incarnation of Lord Vishnu, and his teachings and actions are considered to be the foundation of Ayyavazhi.

The role of Ayya Vaikundar in Ayyavazhi is multi-faceted and significant. He is revered as a spiritual leader, a social reformer, and a divine figure by his followers. His teachings and actions have had a profound impact on the religious and social landscape of South India.

As a spiritual leader, Ayya Vaikundar preached the concept of dharma, which refers to righteousness, duty, and moral order. He emphasized the importance of leading a virtuous life and following the path of righteousness. He also taught the principles of non-violence, compassion, and love towards all beings. Ayya Vaikundar's teachings were based on the belief that all humans are equal and that everyone should be treated with respect and dignity.

Ayya Vaikundar also played a significant role as a social reformer. He challenged the caste system and advocated for social equality and unity among all people. He encouraged his followers to reject the discriminatory practices of the caste system and to treat everyone as equals. Ayya Vaikundar's teachings and actions were instrumental in breaking down the barriers of caste and promoting social harmony and unity.

As a divine figure, Ayya Vaikundar is believed to have performed many miracles and divine acts during his lifetime. He is said to have healed the sick, raised the dead, and performed other supernatural feats. These acts further solidified his followers' belief in his divine nature and strengthened their devotion to him.

Ayya Vaikundar also established a new religious order, known as the Pathis, which consisted of 18 holy centers where his followers could gather and worship. These Pathis serve as important centers of religious and social activities for the Ayyavazhi community.

In summary, Ayya Vaikundar's role in Ayyavazhi is that of a spiritual leader, social reformer, and divine figure. His teachings and actions have had a profound impact on the religious and social fabric of South India, promoting the values of dharma, social equality, and unity. He continues to be revered and worshipped by his followers, who see him as the embodiment of truth, righteousness, and love.