 The chief incumbent of the Malwathu Maha Viharaya is the Mahanayaka thero of Malwatta chapter of Siyam nikaya, a leading Buddhist monastic fraternity in Sri Lanka.The present chief incumbent of Malwathu Maha Viharaya is Thibbatuwawe Sri Siddhartha Sumangala Thero.Malwathu Maha Viharaya consists of two sections, the "Uposatha Viharaya" which is also known as ‘"Poyamalu Viharaya"’ and the other "Pushparama Viharaya" popularly known as "Malwathu Viharaya".