Prime Minister is the leader of the ________

The Constitution does not contain any specific procedure for the selection and appointment of Prime Minister. Article 75 of Constitution only says that Prime Minister shall be appointed by President. President in accordance with the conventions of parliamentary system has to appoint leader of the majority party in the Lok Sabha as Prime Minister. In case of when no party has the clear majority in the Lok Sabha, then the President may exercise his personal discretion in the selection and appointment of Prime Minister.