The Prime Minister of India is the leader of the executive of the Government of India. The prime minister is also the chief adviser to the President of India and head of the Council of Ministers. They can be a member of any of the two houses of the Parliament of India—the Lok Sabha (House of the People) and the Rajya Sabha (Council of the States).
Article 75 of the Constitution of India-which sets the qualifications for the minister in the Union Council of Ministers
Oaths of office
The prime minister is required to make and subscribe in the presence of President of India before entering office, the oath of office and secrecy, as per the Third Schedule of the Constitution of India.
Tenure and removal from office
The prime minister serves on 'the pleasure of the president. The prime minister must have the confidence of Lok Sabha, the lower house of the Parliament of India.
However, the term of a prime minister can end before the end of a Lok Sabha's term, if a simple majority of its members no longer have confidence in him/her, this is called a vote-of-no-confidence. Three prime ministers,