The Constitution of India is the result of considerable imitation and adaptation of other Constitutions. The Indian Constitution consist of 22 Parts with its 395 Articles and many of which contain a number of exceptions and limitations. And Indian Constitution has 12 Schedules and 92nd Amendments so far making it the longest Constitution in the world. Indian Constitution is basically federal in form and is marked by the traditional characteristics of a federal system, for example supremacy of the Constitution, division of power between the Union and the State Governments, existence of an independent judiciary , and rigid procedure for its amendment.The Constitution of India operates as a fundamental law. The Governmental organs owe their origin to the Constitution and derive their authority from and discharge their responsibilities within the framework of the Constitution.The validity of a law whether of Union or State, is judged with reference to their respective jurisdictions as defined in the Constitution. The judiciary has power to declare a law unconstitutional if the law is found to have contravened any provision of the Constitution.The subject-matter of politics is power. It is the manner in which the state uses power, that determines the form of government i.e Democracy or socialism. This in turn determines the nature of the Constitution.Democracy is the form of Government which India has adopted. Here the State is a contrivance to cater the needs of the individual. There are millions of individuals and they cannot directly exercise power. The power is thus exercised indirectly through the elected representatives.A political System includes not only traditional institutions like legislature, judiciary and executive but also associations with political features such as political parties, interest groups and pressure groups.