A systematic approach for studying History for UPSC includes creating a structured study timetable, focusing on important themes, and making use of NCERT textbooks and standard reference books. Candidates should begin with a broad overview and then delve into specifics, covering ancient, medieval, and modern history. Regular revision and practice with previous years' question papers will help consolidate knowledge. Utilizing mind maps can also aid in visualizing connections between events and key figures, ensuring a comprehensive understanding. Engaging in group discussions can provide diverse insights and reinforce learning.