From the foundation to until popular movement, the defence administration was directly overseen by the Crown itself.

The Commander-in Chief and the Senior Commanding General between themselves dealt with the whole range of administration and policy regarding defence.

According to Business (Allocation) Regulation 2063, the Ministry of Defense is responsible for following functions: Ministry of Defence is established as per Government of Nepal Business Allocation Rules, 2069 (2012) with the objective of managing and operating national defence affairs.

[1] The Ministry is responsible for maintaining internal as well as external security in order to safeguard the national sovereignty and territorial integrity.

Besides, the MoD also acts as a liaison or contact point for communication and interaction for Nepal Army with other Ministries and Departments.