Who were Alwars and Nayanars?

The Alvars were Tamil poet saints of South India who led some of the earliest Bhakti movements during 6th Century CE. They were devotees of Vishnu and often used different songs and hymns to express their devotion.

The Nayanars were 63 poet saints who lived between 6th and 8th century in Tamil Nadu. They were devotees of Shiva and had a big impact on the Bhakti movement in southern India.