Rate Mahatmaya was a feudal title from the Kandian Kingdom which became part of the British colonial administration within the Kandian and central region of Ceylon.
Persons were appointed to the title and office by the King during the Kingdom of Kandy, these appointees headed the administration of a large locality known as Korale, which was a division of the province of the Kingdom known as a Dissava and as such he would be subordinate to the local Dissava. There was no time limit for the officer holder as he held the post at the pleasure of the King, which meant throughout his life, if not incurred the displeasure of the King. It was not hereditary, although members of the same family have been appointed. They were members of the Radala Cast, who were referred to as the Chieftains of Kandy by the British. Many were instrumental in the surrender of the Kandian Kingdom to the British.
Following the expansion of British rule into the provinces of the former Kandian Kingdom in 1815, the British retained the office of Rate Mahatmaya appointing Kandians loyal to the British Crown. Following the Uva Rebellion in 1818 and changers to the administrative divisions of the island with the creation of Districts, British Government Agents (GA) took over the duties of the Dissava, with Rate Mahatmaya becoming a subordinate to the local Government Agents and Assistant Government Agents. During the British administration a Rate Mahatmaya would head a revenue district, a Korale and would the Kandian equivalent to a Mudaliyar in the lower country or the coastal regions. Appointments were stopped in the 1930s after the abolition of the native department.