Ayar are ethnic group of India and were possibly related to the historic Yadava people mentioned in the Puranas.
In the early Sangam literature, the Ayars are described as having occupied the mullai or 'forest region'. The word Ayar is derived from the Dravidian word "A" meaning 'cow'. However, they are also known by other names, including Konar and Idaiyar.
References
Ayar Wikipedia(Text) CC BY-SA