[1][2] He led a rebellion as the military commander of Thanjavur Nayak against the Portuguese in their conquest of the Jaffna kingdom in 1619.
[3][5] Varuna is the sea god of the Neydal Sangam landscape and the totem of the Karaiyars (maritime martial caste).
Raghunatha Nayak sent a troop of 5000 men under the command of Varunakulattan who put down the uprising.
[8] Migapulle Arachchi started a third revolt on 5 December 1620 with the aid of two thousand soldiers of Thanjavur Nayak kingdom under the command of Varunakulattan, again resulting in another defeat.
His new army landed in Achchuveli and was ambushed and destroyed by Portuguese admiral Antao da Motta Galvao and his force on 11 February 1621.