His first appointment was as a government teacher in the Bilingual School of Bomiriya. He was later promoted to the position of principal of the Kadugannawa Bilingual School. After 11 years, he was promoted again to the position of inspector of schools. He remained in that role for four years. His first book,
Nikaya Sangraha Vivaranaya, was an analysis of a Scripture on the
Buddhist Monastic Orders. Munidasa was a member of the Sinhala Maha Sabha of the Swabhasha movement, which started as a protest against the English-educated elites. Munidasa spoke of language, nation, and the country as a
Triple Gem, linking these entities to the
Buddhist concept of refuge. To pursue these sources of refuge, he founded the Hela Havula, which consisted of people who shared his views on
Sinhala language and literary interest. Members of the group often engaged in debates and discussion of recommended literature. It was the starting point for many Sri Lankan scholars and artists and the organization. Munidasa revived the
Lakminipahana newspaper and started the
Subasa and
Helio magazines to teach and promote the correct use of Sinhala. == Novels written by Munidasa Kumaratunga ==