The best resources for studying for the UPSC exam include a mix of books, online courses, and institutions. Standard books by authors like Laxmikanth for Indian Polity, GC Leong for Geography, and Ramesh Singh for Indian Economy are highly recommended. Additionally, candidates can utilize platforms like Vision IAS or BYJU'S for structured courses. Regularly revisiting current events through newspapers like "The Hindu" or "Indian Express" also plays a crucial role. Joining mock tests and discussion forums can further refine knowledge and exam strategies.