UPSC candidates can enhance their learning efficiency using several smart study techniques. One effective method is active recall, which involves testing oneself on the material to improve retention. Another strategy is the Pomodoro Technique, where study sessions are broken down into 25-minute intervals followed by breaks, which maintains focus and prevent burnout. Utilizing mind mapping can help in visualizing complex topics. Additionally, practicing previous exam papers familiarizes candidates with the exam format and question types. Collaborative study groups can provide peer support and diverse insights, fostering a deeper understanding of the material.