Effective strategies for answering the essay paper in the UPSC Mains include extensive practice and clear structuring of thoughts. Candidates should develop a habit of brainstorming ideas on various topics to foster creativity. Utilizing outlines helps organize arguments logically before writing a full essay. It's essential to capture attention with a strong introduction, develop arguments with supporting examples, and conclude with a summary of insights. Maintaining clarity and coherence is crucial. Regular feedback from mentors or peers can identify areas for improvement. Moreover, practicing under timed conditions simulates the exam environment for better preparation.