He was deposed in 1450 by Sapumal Kumaraya a military leader sent by Parakramabâhu VI from the rival Kotte Kingdom in the south.
Number of primary sources such as Rajavaliya and Kokila Sandesa written in Sinhalese vividly describe the planning and conquest of the Jaffna Kingdom.
[1][2] Kanakasooriya escaped to Madurai in South India with his two sons.
After the death of Parakramabahu VI in 1467, he left Nallur the capital he had rebuilt to Kotte to participate in a struggle to inherit the throne.
Although he was victorious and ruled as Srisangabodhi Bhuvanekabhahu, he was unable to prevent Kanakasooriya Cinkaiariyan and his two son's return from Madurai[1][2] with mercenaries to wrest the Jaffna Kingdom from Kotte's over lordship.