Random study usually happens when you don’t have a clear reference point for what to study. The UPSC syllabus and Previous Year Questions should act as your constant guide, helping you decide what is important and what can be ignored.

Breaking preparation into phases and following a simple study plan prevents jumping between topics and resources. Tracking what you’ve already covered also helps you stay focused instead of repeating or skipping topics.
When preparation is guided by structure and clarity, random study naturally gets replaced by purposeful learning.