Studying smart rather than studying hard is the biggest secret of toppers. Surprisingly or not surprisingly, most of the toppers focus on short study duration rather than sitting for long hours at the study table. They don't invest a lot of time in memorizing and focus rather on understanding concepts. Toppers also spend a lot of time practicing rather than only reading. They use different types of effective learning tools to prepare and give so much difference to little details like diagrams, tables, flowcharts, etc.