In the Indian parliamentary system, the Prime Minister serves as the head of government, leading the Council of Ministers. The effectiveness of this system relies on the support of the majority in the Lok Sabha, and any loss of this support can lead to the downfall of the Prime Minister and their council. The section emphasizes the Prime Minister's role in appointing ministers, managing coalitions in the case of no party having a majority, and ensuring that the Council of Ministers acts collectively. The dynamics between the Executive, Legislature, and political parties are crucial for understanding how governmental policies are formulated and executed. Additionally, it discusses the checks on power through the principle of collective responsibility and the constitutional framework that outlines these functions.