How to prepare Physical, Economic, and Human Geography for UPSC Mains?

Master Geography by focusing on spatial analysis. For Physical Geography, use GC Leong to understand natural phenomena and resource distribution.
In Economic Geography, analyze industrial location factors using NCERT Class 12.
For Human Geography, focus on urbanisation and migration trends.
Always include hand-drawn maps and diagrams in your answers, and link static concepts to recent events like cyclones or global resource shifts.