Thamarai 's father , King Vijayakumar ( Periyamalaikozhundhu Gounder ) , arranges for her marriage to Mandhiyappan ( Prakash Raj ) , ruler of a neighbouring country . Thamarai 's father , King Periyamalaikozhundhu Gounder ( Vijayakumar ) , arranges for her marriage to Mandhiyappan ( Prakash Raj ) , ruler of a neighbouring country .