The Constitution of India shapes the UPSC examination framework by establishing the foundational principles of governance, law, and administration. The examination assesses knowledge of the Constitution, enabling candidates to understand the rights and responsibilities of citizens and the structure of government institutions. It emphasizes essential features like federalism, separation of powers, and fundamental rights, ensuring that administrators uphold constitutional values. A strong grasp of the Constitution is crucial for effective policy-making and implementation, reinforcing its importance in the context of both the written exams and the personality test, where candidates demonstrate their understanding of governance principles.