 Ariyadhamma thero was proficient in Pali and Sanskrit and had extensive knowledge of the Pali Canon and the Pali commentaries.He was a teacher at the Gunawardena Yogasrama (the headquarters of Sri Kalyani Yogasrama Samstha) from 1965 to 1995.Ven Ariyadhamma thero was appointed the registrar of Sri Kalyani Yogasrama Samstha in 1969, a position he held until being appointed the spiritual advisor and head of the organization in 2003.