Understanding diverse cultures is relevant in the UPSC syllabus as it equips candidates to appreciate India's pluralistic society, fostering social harmony and inclusivity. Knowledge of cultural practices aids in understanding socio-economic issues that affect governance and policy-making. Moreover, it enables aspirants to tackle questions related to national integration, communal harmony, and regional disparities effectively. Additionally, awareness of global cultural dynamics can enhance a candidate's perspective on international relations and diplomacy. Hence, cultural literacy is essential in developing well-rounded and informed future civil servants.