A thorough understanding of regional languages significantly aids UPSC candidates, enhancing their performance in examinations and interviews. Proficiency in regional languages allows candidates to grasp the socio-cultural nuances of different areas and helps in appreciating local issues critically. It facilitates better communication with local populations during fieldwork and can enrich written examination responses by integrating local perspectives. Additionally, familiarity with regional languages can improve understanding of state-specific policies and governance, making candidates more well-rounded and prepared for roles in administration.