Familiarity with the Indian Constitution greatly aids UPSC preparation by providing a foundational understanding of the governance framework of India. It equips aspirants with knowledge of fundamental rights, duties, and the structure of government, which are crucial for various examination components. Moreover, constitutional provisions often underlie current affairs, allowing candidates to connect theoretical concepts with real-world implications. This deep understanding enhances analytical skills, better preparing candidates for both the written and interview segments of the UPSC exam.