Historian Mahesh Chandra Regmi suggests that Kaji is derived from Sanskrit word Karyi which meant functionary.
[11] The number of officers including Kajis changed after King Rana Bahadur abdicated in favour of his minor son Girvan Yuddha Bikram Shah.
[10] During the reign of Bhimsen Thapa, there were inner and outer circle of Kajis who acted as decision-making body and military commander and governors respectively.
[14][15][page needed] Chief (Mul) Kaji was considered equivalent to Prime Minister of Nepal before King Rana Bahadur Shah created the position of Mukhtiyar in 1806 and carried executive powers of nation to completely control Nepalese administration.
[17] Kirtiman was secretly assassinated on 28 September 1801, by the supporters of Raj Rajeshwari Devi[18] and his brother Bakhtawar Singh Basnyat, was then given the post of Chief (Mul) Kaji.