Preamble Of Indian Constitution GK: What is Preamble- Introduction or Preface to the Constitution. Which was the first constitution to begin with a Preamble- American Constitution. Who called Preamble as the ‘identity card of the Constitution’- N.A.Palkhivala. Which three new words added by the 42nd Constitutional Amendment Act 1976 in the Preamble- Socialist, Secular &