The principle of individual ministerial responsibility refers to the convention that a minister is responsible to every actions of their department / ministry and it's applicable in the presidential system of government. Collective responsibility is to cabinet or parliamentary system of government where ministers are collectively responsible for there decisions.

The Northern People’s Congress (NPC) was the first major political party in Northern Nigeria. It began as Jamiyar Mutanen Arewa (JMA) in 1948. The party was formally launched in October 1951.