A parliamentary system is known as 'Responsible Government' because the executive (Council of Ministers) is collectively and directly responsible to the legislature (Lok Sabha in India). It is called 'Cabinet Government' because the Cabinet, as a small body within the Council of Ministers, is the real centre of power and plays a crucial role in policy-making and governance. It is referred to as the 'Westminster form of Government' because this system originated and evolved in the UK Parliament, located at Westminster.