sentences:  The Karaiyar chieftains thereafter proceeded to Nagapattinam and overthrew the fort there after another four months siege with the loss of additional 1300 troops, where also their royal Karaiyar leader, "Manikka Thalaivan" got killed.Manikka Thalaivan's sons were eventually adopted by Parakramabahu VI, one of whom is known as Sapumal Kumaraya.The chieftains settled after the victory in the area between Chilaw and Negombo.