Effective strategies for preparing for the General Studies paper in UPSC Mains include a structured study plan, focusing on the syllabus and current affairs. Regular revision is essential, supplemented by practicing answer writing to enhance articulation skills. Utilizing standard textbooks alongside reputable online resources helps candidates cover diverse topics comprehensively. Incorporating mock tests significantly improves time management and question-answering speed. Additionally, maintaining a balance between breadth and depth ensures candidates grasp key concepts while remaining adaptable to various question formats. Staying updated with current affairs through newspapers complements theoretical knowledge.