The Mugunuwatawana Rajamaha Vihara at Mugunuwatawana of the Chilaw Divisional Secretariat is considered to be a sacred place belonging to the Anuradhapura period. Manorathapurani, the Commentary of Anguttara Nikaya mentions that this monastery was built by King Saddhatissa. According to the description Arahant Khujjatissa Thera is said to have lived in this monastery.