What was the significant decision given by the Supreme Court in the Kesavananda Bharati case?

The Parliament cannot violate the basic structure of the Constitution.

The correct answer is Option 2 - The Parliament cannot violate the basic structure of the Constitution.

In the Kesavananda Bharati case, the Supreme Court ruled that there is a basic structure of the Constitution that even the Parliament cannot violate through amendments.

In 1973, the Supreme Court gave a decision that has become very important in regulating the relations between the Parliament and the Judiciary since then. This case is famous as the Kesavananda Bharati case. In this case, the Court ruled that there is a basic structure of the Constitution and nobody—not even the Parliament (through amendment)—can violate the basic structure. The Court did two more things. First, it said that right to property (the disputed issue) was not part of basic structure and therefore could be suitably abridged. Secondly, the Court reserved to itself the right to decide whether various matters are part of the basic structure of the Constitution. This case is perhaps the best example of how judiciary uses its power to interpret the Constitution.