Aspirants should develop critical soft skills such as communication, problem-solving, and time management during UPSC preparation. Effective communication is crucial for the interview stage, enabling candidates to express their thoughts clearly. Problem-solving skills assist in tackling complex questions efficiently. Additionally, mastering time management is vital for balancing extensive syllabus coverage and revision schedules. Emotional intelligence also plays a significant role in handling stress and maintaining motivation. Candidates should engage in activities like group discussions or mock interviews to refine these skills, ensuring they are well-rounded by the exam.