Kalinga Magha moves the capital to the Jaffna peninsula, which is more secure due to the heavy Vanni forest, after the conquest of Rajarata.

Ruling as a tribute-paying subordinate of the Chola empire of Tanjavur, in modern Tamil Nadu, India, with the help of his soldiers and mercenaries from the Kalinga, modern Kerala and Damila regions on the mainland, Kalinga Magha’s priorities are to extract as much as possible from the land and overturn as many of the traditions of Rajarata as possible.

His reign sees the massive migration of native Sinhalese people to the south and west of Sri Lanka, and into the mountainous interior, in a bid to escape his power.

Sri Lanka will never really recover from the impact of Kalinga Magha's invasion.