Mock interviews are highly important for UPSC aspirants before the final interview. They provide candidates with a simulated interview experience, bolstering their confidence and reducing anxiety. This practice helps in refining communication, body language, and response strategies to typical interview questions. Receiving constructive feedback from mentors or peers enables candidates to identify areas for improvement, fostering self-aware growth. The familiarity gained through mock interviews allows aspirants to articulate their thoughts more clearly and manage unexpected questions effectively, ultimately enhancing their performance during the actual interview.