Which of following is not a correct statement with respect to the Preamble of Indian Constitution?

The preamble in the Constitution of India underlies four ingredients. Firstly, it reveals the source of authority of the Constitution i.e. the people of India; secondly it describes the nature of Indian state; thirdly, it defines the objectives of the Constitution of India and lastly, it was adopted on 26th November, 1949. Preamble is not enforceable in court of law . This means that It is not justifiable in nature.