Dimbulagala Raja Maha Vihara is situated 16 kilometres south east of the ancient city of Polonnaruwa, Sri Lanka. The Dimbulagala range houses a number of caves cut into the rock with Brahmi inscriptions over their drip ledges. This forest hermitage of medieval times and holy abode since time immemorial, home to some of the most valued fragments of early frescoes was called the Gunners Quoin by the British. This Buddhist monastery which was abandoned after the times of the Kingdom of Polonnaruwa was restored to the present status in the 1950s due to the efforts of Kithalagama Sri Seelalankara Thera, who was the chief incumbent of the Vihara until his death in 1995.
According to traditional Sri Lankan chronicles such as the Mahavamsa and the Dipavamsa, Buddhism was introduced into the island in the third century BCE after the Third Buddhist council by the elder Mahinda and by the elder nun Sangamitta.
Mahinda is associated with the site of Mihintale, one of the oldest Buddhist site in Sri Lanka. Mihintale includes numerous caves which may have been used by the early Sri Lankan sangha.
While there is few artistic .