Prime Minister's Office (Sri Lanka) the Parliament. The office of prime minister was formed in 1947 with D. S. Senanayake becoming the first Prime Minister of Ceylon. It consisted of a Secretary (Permanent Secretary) and an Assistant Secretary, who were officers of the Ceylon Civil Service, and a Private Secretary, along with clerical and support staff based at the Senate Building along with the Senate, Cabinet office and the Ministry of External Affairs and Defence. Since 1960 the prime minister's office has been based at Sirimathipaya Mansion on Sir Ernest de Silva Mawatha (formerly Flower Road), Colombo which was the former residence of philanthropist Sir
Prime Minister of Nigeria been assassinated) and since then, Nigeria has been a Presidential republic with the President as the head of state and head of government. Prime Minister of Nigeria The Prime Minister of Nigeria was the head of government of Nigeria from 1960 to 1966. When Nigeria gained independence from the United Kingdom on 1 October 1960, it originally had a parliamentary constitutional monarchy with Queen Elizabeth II as the head of state. But in 1963, Nigeria ended its status as a Commonwealth Realm and became a republic. The head of state was the President, while the Prime Minister served as the