Various study techniques can bolster retention of information for UPSC preparation. Techniques such as the Pomodoro Technique can enhance focus by balancing study and short breaks. Mnemonics can assist in memorizing complex data, while mind maps offer a visual representation of connections between topics. Engaging with the material through active recall and self-testing further reinforces learning. Consistent revision and varied modes of study contribute to deeper understanding, crucial for retaining vast amounts of information.