Familiarity with the Indian Constitution significantly aids in UPSC exam preparation by providing a foundational understanding of governance, rights, and responsibilities in India. Knowledge of constitutional provisions helps candidates tackle questions related to polity, law, and ethics effectively. It also plays a crucial role in both prelims and mains, especially in subjects like public administration and political science. Understanding landmark judgments and amendments enhances analytical abilities. This comprehensive understanding ultimately enriches interviews as well, enabling candidates to discuss constitutional issues knowledgeably.