To build a habit of reading for UPSC exams, aspirants should schedule daily reading time and start with manageable goals. Selecting diverse reading materials, including current affairs, textbooks, and articles, can sustain interest. Joining a reading group or club can foster accountability and enhance discussions on crucial subjects. Gradually increasing reading complexity and volume over time helps solidify the habit. Consistency is key, as daily reading develops comprehension skills and prepares candidates for the exam's extensive reading requirements.