Magadai or Magadai Mandalam was a Tamil kingdom that flourished during the 13th and 14th centuries near the modern-day Aragalur. Aragalurudaiya Ponparappinan Rajarajadevan, alias Magadesan, was the Bana chief who ruled this region around 1197. There were three important chieftains in this region: * Kadava with capitol at Kudalur near Cuddalore and Sendamangalam * Malaiyamaan with capitol at Tirukkoyilur and Killiyur * Magadai mandalam with its chief * Rajarajan * ponparappina-perumal (Rajarajan's son) * vira Magadan Rajarajadevan pon parappinan Magadaipprumal (second chief of Rajarajan)