Strategies to cover the vast UPSC syllabus effectively include creating a structured timetable and breaking the syllabus into manageable sections. Prioritizing topics based on their weightage and relevance in previous exams helps in efficient preparation. Utilizing credible study materials, previous years' question papers, and online resources can enhance understanding. Regularly revising covered topics and practicing mock tests will reinforce knowledge and improve time management. Engaging in group studies can also foster constructive discussions, allowing candidates to grasp different viewpoints and clarify doubts.