Effective revision before the UPSC exam can be optimized through a structured approach. Candidates should begin by creating a comprehensive revision plan that allocates time for each subject based on perceived weaknesses. Employing active revision techniques, such as mind maps and summaries, facilitates retention of core concepts. Regularly practicing answer writing also helps in applying knowledge efficiently. Additionally, group study sessions can reinforce important topics through discussions. Simulating exam conditions with timed practice tests boosts confidence. Consistency in revision, combined with relaxation techniques, prepares candidates mentally for the exam.