Covering the Indian Constitution in UPSC preparation is essential as it forms the backbone of India's governance and legal framework. Understanding constitutional provisions enables aspirants to comprehend the structure of government, fundamental rights, and duties, which are crucial for the examination. A thorough grasp of the Constitution aids students in answering questions on political theory, governance, and law effectively. Additionally, knowledge of constitutional aspects is vital for interviews, where a candidate's understanding of the legal system can significantly impact their performance.