The correct answer is Fraternity.

• Fraternity means behaving as if we are members of the same family.

• The Preamble of the constitution:
  • The idea of the Preamble is derived from the Constitution of the USA.
  • The ideals embodied in the Objectives Resolution are reflected in the Preamble to the Constitution, which, as amended in 1976, summaries the aims and objects of the Constitution.
  • N.A. Palkivala, an eminent jurist and constitutional expert, called the Preamble as the Identity.
  • The Preamble to the Indian Constitution is based on the Objectives Resolution drafted and moved by Pandit Nehru and adopted by the Constituent Assembly.
  • The Preamble is not enforceable in a court of law.
  • The Preamble has been amended only once so far, in 1976, by the 42nd Constitutional Amendment Act, which added three new words Socialist, Secular and Integrity. This amendment was held to be valid.
  • In case of doubt, the Supreme Court has referred to the Preamble to elucidate vague aspects of the Constitution.
  • In the Berubari case, the Supreme Court held that the Preamble was not part of the Constitution, but later, in the Keshavananda Bharti case, it declared that it was part of the Constitution.