Solution:India has a Parliamentary form of Government, not a Presidential form of Government. The President is only the formal head of the Government. In other words, he is a nominal head of the executive branch.The real executive being the Council of Ministers headed by the Prime Minister. Indian Constitution adopted a form of secular State and federal system. India chose a parliamentary form of government primarily because the constitution-makers were greatly influenced by the system in England.
Another reason the founding fathers saw was that the parliamentary model would only work to accommodate the varied and diverse groups within our population. Also, the strict separation of powers in the presidential system would cause conflicts between the two branches, the executive and the legislature, which our newly-independent country could ill-afford.
There are more parliamentary forms of government in the world than there are presidencies. In this system, the parliament is generally supreme and the executive is responsible to the legislature. It is also known as the Cabinet form of government, and also 'Responsible Government.