Understanding regional languages is significant for UPSC candidates as it enhances communication skills and cultural awareness. Proficiency in regional languages aids in interview preparation, allowing aspirants to convey their thoughts articulately. Additionally, it helps in comprehending the diverse perspectives prevalent in various states, which is crucial for effective governance. Mastery of regional languages also aids in reading local news and understanding grassroots issues, ultimately contributing to a well-rounded performance in both the examination and administrative roles.