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 Malaysia Minister of the Federation of Malaya, became Prime Minister of Malaysia. From independence until the 2018 general election, the Prime Minister had always been from the United Malays National Organisation (UMNO) party of Barisan Nasional (previously Alliance). Following a general election, Mahathir Mohamad took office on 10 May 2018, as the first Prime Minister of the opposition coalition, Pakatan Harapan (PH). Mahathir is the first Prime Minister not to represent the Alliance/Barisan Nasional coalition. He is also the first Malaysian Prime Minister to serve from two different parties and on non-consecutive terms. Mahathir and the PH coalition have confirmed that,