A memorial pillar with an inscription in the name of "Mahakshatrapa Kumara Rupiamma" has been recovered in Pauni, and is dated to the 2nd century CE. Rupiamma is probably related to the Saka Western Satraps. This memorial pillar is thought to mark the southern extent of the conquests of the Western Satraps, much beyond the traditionally held boundary of the Narmada River. As a "Great Satrap", Rupiamma may alternatively, or jointly, have been a feudatory or representative of the Kushan Empire, which would suggest that Kushan control also extended this far south, beyond the generally accepted southern boundary formed by the Narmada river. The use of the word "Kumara" may also mean that Rupiamma was the son of a Great Satrap, rather than holding the title himself.