The Correct answer is Option 2. Explanation & Key Takeaways: The passage clearly mentions that in the Berubari Union Case (1960), the Supreme Court acknowledged the importance of the Preamble as a guide to understanding the objectives and intentions of the Constitution. However, despite recognizing its significance, the Court explicitly held that the Preamble is not a part of the Constitution. Later, this view was changed in subsequent judgments like the Keshavananda Bharati case (1973) and the LIC of India case (1995), where the Supreme Court held that the Preamble is an integral part of the Constitution. Therefore, the case in which the Supreme Court opined that the Preamble is not a part of the Constitution is the Berubari Union case.