Either the cabinet minister has to resign (if the cabinet still supports the Prime Minister), or if the cabinet no longer supports the Prime Minister the Prime Minister has to resign (resulting in a party election) or the Prime Minister can call a general election.
morarji desai
In the UK the Prime Minister can "reshuffle" his cabinet and take the minister out, stripping them of their position; but they are still an MP.
October 2007, at the end of Prime Minister Shaukat Aziz'stenure...
It is possible that a Prime Minister could win the general election (i.e., win the most seats) but lose in his/her own riding.In that case, the Prime Minister would likely prevail upon a government backbencher in a so-called "safe seat" to resign, and the Prime Minister would run in the subsequent by-election. The Prime Minister would remain as Prime Minister during this procedure.The Prime Minister could also interpret the result as the electorate signifying satisfaction with his/her party, but dissatisfaction with him/herself personally. In such a case, the Prime Minister might resign and the Governor General would then ask another government member to form a government. Given the ego of your typical Prime Minister, that scenario is not likely to develop unless the Prime Minister also loses the by-election in the safe seat.
The Queen appoints the Prime Minister and as such, can make him or her resign. However, typically the two communicate regularly on governmental matters and maintain a balance of power.
Sir Mackenzie Bowell was the only Prime Minister of Canada to be forced to resign. http://canadaonline.about.com/cs/primeminister/p/pmbowell.htm
Morarji Desai was the first Indian prime minister to resign from office. He resigned in July of 1979 after serving just slightly over two years of the five year term.
Austria. Prime Minister Schuschnigg was forced to resign after attempting to hold a referendum in order to stop the spreading German influence. The next Prime Minister of Austria was a Nazi, and allowed the annexation of Austria into Nazi Germany.
The duties of the Deputy Prime Minister are to act on behalf of the Prime Minister in his or her absence overseas or on leave. The Deputy Prime Minister has always been a member of the Cabinet and has always held at least one substantive portfolio. (It would be technically possible for a minister to hold only the portfolio of Deputy Prime Minister, but this has never happened.) If the Prime Minister were to die, become incapacitated or resign, the Governor- General would normally appoint the Deputy Prime Minister as Prime Minister. If the governing or majority party had not yet elected a new leader, that appointment would be on an interim basis. Should a different leader emerge, that person would then be appointed Prime Minister.
A motion of non-confidence does not "vote out" the prime minister, it only requires that the prime minister either resign (in which case a new prime minister would be summoned immediately by the Governor General of Canada), or seek the dissolution of Parliament (in which case the prime minister would continue at least until the results of the subsequent general election).
Mackenzie Bowell