The functioning of the Union Executive of India is headed by the Prime Minister. The key executive powers of the government are assigned to the Prime Minister, while the President serves as the nominal head. The Prime Minister plays the key link between the Council of Ministers and the President as well as the Parliament.
The Prime Minister exercises their powers in various manners: heads and controls the Council of Ministers, leader of ruling party, leadership of the Lok Sabha, command over the bureaucratic wing, and responsible for projecting as the national leader on international avenues and during foreign visits.
Since India follows a parliamentary system, the Prime Minister becomes the most senior member of cabinet in the Union Executive. They have the power to select members of the cabinet. The Prime Minister is the presiding member and Chairperson of the cabinet with the power to allocate posts to members within the government. The Council of Ministers comes into existence only once the Prime Minister takes the oath of office and they can not continue to exist without the Prime Minister.