To employ effective audio-visual study inputs during UPSC preparation, aspirants can utilize various techniques. Watching documentaries, educational videos, and lectures helps visualize complex topics, enhancing retention. Creating mind maps from video content allows for better organization of ideas. Additionally, listening to podcasts or audiobooks while commuting can maximize learning time. Employing subtitles while watching videos can reinforce understanding through active engagement. Regularly revisiting key concepts through a mix of audio-visual formats helps reinforce learning, ensuring a well-rounded grasp of the syllabus.