The Indian Constitution, since its adoption in 1950, has evolved significantly while preserving its core tenets through the theory of 'basic structure' established in the Kesavananda Bharati case of 1973. This doctrine restricts Parliament's ability to amend the Constitution in ways that can undermine fundamental principles such as the rule of law, democracy, and the balance of power among government branches. The judiciary, through interpretations, has played a critical role in ensuring that amendments align with the Constitution’s spirit. Thus, while the Constitution is a living document receptive to societal changes, it remains firmly anchored in its foundational values, balancing flexibility and rigidity.