83.
Which statement is incorrect?

89.
Which of the following statement(s) is/are incorrect?
1. In Keshavananda Bharati case, the Supreme Court has said that the Preamble to the constitution is a key to open the mind of the makers
2. "Socialist and Secular" words were added to the Preamble by 44th Amendment of the Constitution
3. Preamble can only be amended if it violates the Basic Structure of the Constitution
4. Since preamble is not Articled so it is not the part of the Constitution