The Constitution contains the basic principles and laws of a nation that determine the powers and duties of the government. A constitution serves multiple purposes. It provides a legitimate legal and political basis for the Government to propose and enact laws, organising public service and settling disputes. 

Although the Constitution determines the objectives (DPSP) for the making of necessary laws and aims to promote social, economic and political democracy, its chief purpose is to limit the power of government. In fact the Constitutional government is by definition limited government.