<P> Preamble to the Constitution of India is a brief introductory statement that sets out the guiding purpose and principles of the document , and it indicates the source from which the document derives its authority , meaning , the people . The hopes and aspirations of the people as well as the ideals before our nation are described in the preamble in clear words . It may be considered as the heart and soul of Constitution . The preamble can be referred to as the preface which highlights the entire Constitution . It was adopted on 26 November 1949 by the Constituent Assembly and came into effect on 26th January 1950 , secularism was included in the preamble of India on 18th March . </P>
what does the preamble of indian constitution contain
the guiding purpose and principles of the document