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Constitution is a legal document having a special legal sanctity, which sets out the framework and the principal functions of the organs of the government of a state, and declares the principles governing the operation of those organs. Like every other Constitution, the Indian Constitution also seeks to establish the fundamental organs of government and administration, lays down their structure, composition, powers and principal functions, defines the inter-relationship of one organ with another, and regulates the relationship between the citizen and the state, more particularly the political relationship. The states have reasserted certain principles of law through written Constitutions.
As a democratic Constitution, the Indian masterpiece also reflects the fundamental political values in substantive ways by guaranteeing Fundamental Rights to the citizens, and in procedural ways by providing remedies. It mirrors basic values about who shall govern, and in what direction. Constitution means the structure of a body, organism or organization, or we can also say, what constitutes it or what it consists of. Because the nation is one of the biggest in the would with most of varieties of the people and the cultures, India needs an expressly written code of governance, more specifically when the people chose to have different institutes, estates, mechanisms and levels of sovereignty. And thus we have the longest written constitution, which is one of the essential features of democratic federation.