Consider the following statements regarding the Preamble of the constitution of India:
i) It is based on the Objective resolution introduced by JawaharLal Nehru on 22nd January 1947.
ii) Only Sovereign and Secular words were added to the Preamble by 42nd constitutional amendment act, 1976.
iii) In Keshavananda Bharti case, Supreme Court held that the Preamble is an integral part of the constitution.
Which of the above statements are not correct?