Nagadeepa Purana Vihara is an ancient Buddhist temple situated in the Jaffna district of Northern Province, Sri Lanka. It is among the country’s sixteen holiest Buddhist shrines.

The site is known as the place where Lord Buddha came during his second visit to Sri Lanka, after five years of attaining Enlightenment, to intervene and mediate in settling a dispute between two Naga Kings, Chulodara and Mahodara over the possession of a gem-studded throne.

When Buddha arrived and saw the Naga Kings prepared for fighting, Budhha used psychic powers to appear in the sky performing miracles. This made the Nagas astonished and happy. After having listened to the Dhamma sermons displaying Buddha’s masterly knowledge of unity and harmony, meththa and compassion, the Naga kings paid homage to Budhha with overwhelming faith. The throne was offered to him in unison and they became pious devotees.