
King who built the Kalawewa tank.
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Dhatusena restored the Mahavihara, the main Buddhist monastery in Anuradhapura, which had been damaged during the reign of Mahasena. This act reaffirmed his support for Theravada Buddhism.
Dhatusena constructed the Kalawewa tank, a massive irrigation reservoir in the North Central Province. The tank, with a circumference of over 30 miles, was a major engineering feat and provided water for extensive rice cultivation.
Dhatusena built the Yoda Ela, a 54-mile-long canal that connected the Kalawewa tank to the Tissa Wewa tank in Anuradhapura. This canal ensured a reliable water supply to the capital and surrounding farmlands.
Dhatusena was assassinated by his son Kashyapa, who seized the throne. Kashyapa had Dhatusena walled up alive after the king refused to reveal the location of hidden treasure.
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