<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Constitution of India (IAST: Bhāratīya Saṃvidhāna) is the supreme law of India . The document lays down the framework demarcating fundamental political code, structure, procedures, powers and duties of government institutions and sets out fundamental rights, directive principles and the duties of citizens . It the longest written constitution of any country on earth . B.R. Ambedkar, chairman of the drafting committee, is widely considered to be its chief architect . </P> <P> It imparts constitutional supremacy (not parliamentary supremacy, since it was created by a constituent assembly rather than Parliament), and was adopted by its people with a declaration in its preamble . Parliament cannot override the constitution . </P>

Who was the chairman of the constituent assembly when our constitution was enacted