Following are the districts that have significant Reddiar Population. Chennai, Tiruvallur, Kanchipuram, Chengalpattu, Ranipet, Vellore, Thirupattur, Thiruvannamalai, Krishnagiri, Dharmapuri, Puducherry, Cuddalore, Villupuram, Kallakurichi, Salem, Erode, Tiruppur, Coimbatore, Karur, Perambalur, Tiruchirappalli, Dindigul, Madurai, Virudhunagar, Thoothukudi and Tirunelveli Origin in Tirunelveli Distric, Tamilnadu Anavota Reddy (1335-1364 CE) of Reddy dynasty extended the dominion of the kingdom to Rajahmundry on the north, Kanchi on the south and Srisailam on the west. In a battle at Vallioor, Reddiapuram army defeated Travancore army in the 14th century. [2] In an information Board at the entrance of the Vallioor Murugan Temple it is stated that 14th century Vallioor War – Reddiapuram army defeated Travancore Army at vallioor Battle. After this war Reddiars settled at Samugarengapuram, Seelathikulam and all over Tirunelveli Region in the 14th century.

A mural at the Tiruppudaimaruthur temple in Tirunelveli district in Tamil Nadu, shows the emissaries of the Vijayanagara king Achyutadeva Raya serving an ultimatum to the Travancore ruler Bhoothala Veera Udaya Marthanda Varma to pay tributes to him and return the Pandya territory to Sri Vallabhan. It also depicts the battle between the armies of Achyutadeva Raya and Bhoothala Varma.They are believed moved into Tamil Nadu with the Vijayanagara Emperor Kumara Kampana to liberate Madurai [Madura Vijayam] from Islamic rule and expansion of Vijayanagar empire along with other Telugu and Kannada origin social groups.