The benefits of visualization techniques in preparing for the UPSC exam include improved memory retention and enhanced understanding of complex concepts. Techniques like mind mapping can help candidates organize information hierarchically, making it easier to recall during exams. Visualization can also assist in creating mental associations between topics, thereby fostering deeper comprehension. Additionally, these techniques can reduce stress and improve focus, allowing candidates to study more effectively. Incorporating visual aids, such as charts and diagrams, can also make study sessions more engaging and productive.