Mahadi Gusau, deputy governor of the state, disclosed this in a statement late Saturday.
The appointment followed the dethronement of Abubakar Cika, the emir who was indicted by a panel that investigated his alleged support for armed bandits.
Matawalle had also approved the removal of Lawal Ahmad, district head of Kanoma under Maru emirate council.
The duo had earlier been suspended over their alleged involvement in banditry.
Cika and Ahmad’s plight began in July when their subjects attacked them in Kanoma town after an attack that led to the deaths of over 30 persons.
Residents of Maru had called on the governor to remove both men.
Until his appointment, the new emir was the senior district head of Maru emirate.
He is the 14th Banaga of Maru.