He was the ruler of Digamadulla, the present day eastern province of Sri Lanka.
[1] King Saddha Tissa continued the remaining work in Mahathupa.
The king subsequently reconstructed the Lowa Maha Paaya at one third of the cost with seven levels, two less than before.
[1] King Saddha Tissa built the Dighavapi vihara and the Duratissa reservoir.
The reservoir has a capacity of 336 million cubic feet (9,500,000 m3) and a surface area of 1,230 acres (500 ha).