Strategies for building a comprehensive UPSC study plan include defining clear goals and adhering to a structured timetable. Candidates should begin with a thorough understanding of the syllabus to identify important topics. Dividing subjects into manageable portions facilitates steady progress. Incorporating regular mock tests helps assess performance and areas needing improvement. Prioritizing current affairs through daily reading and integrating revision periods can enhance retention. Lastly, flexibility in the study plan allows candidates to adapt to unforeseen challenges without compromising their overall preparation strategy.