Citing evidence in UPSC answers is crucial as it demonstrates the ability to support arguments with credible sources. This practice enhances coherence and adds weight to answers, showcasing analytical skills. When candidates cite authoritative materials, examiners are more likely to view them as thorough and knowledgeable. Furthermore, structured responses that integrate evidence tend to score higher, facilitating clearer communication of complex ideas. The UPSC evaluation criteria favor well-supported arguments, making citation an essential skill for aspirants aiming for top marks.