<P> In 2012, the Supreme Court of Pakistan has ceased at least one Prime Minister from retaining the office due to contempt of court after retroactively disqualifying the membership of the parliament permanently . </P> <P> On 28 July 2017, the Supreme Court of Pakistan disqualified the Prime Minister Nawaz Sharif from retaining the office due to his failure in fulfilling the eligibility requirements as enshrined in Articles 62 of the Constitution . This was in the aftermath of the Supreme Court hearing regarding the Panama Papers Case . This also resulted in him being permanently disqualified from membership of the parliament . </P> <P> The prime minister is elected by the National Assembly . The National Assembly meets on the twenty - first day after a general election (at least every five years) unless the President calls for a vote of no confidence . Whichever member of the National assembly is chosen serves as the Prime Minister until the next election or until he fails to maintain the confidence of the National Assembly . </P> <P> 91 . The Cabinet: </P>

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