A UPSC revision checklist should include several essentials: a list of all syllabus topics, important dates for each subject, and key current affairs to review. Candidates should also prepare a summary of critical concepts, terms, and theoretical frameworks for quick reference. Additionally, including space for reflections on mock tests and areas requiring improvement is beneficial. Ensuring that physical and mental health needs are met, such as incorporating breaks and a balanced diet, should also be part of the checklist to ensure optimum performance leading up to the exam.