Aspirants can evaluate their progress during UPSC preparation through regular self-assessment and reflecting on their strengths and weaknesses. Maintaining a structured study plan and setting measurable goals can help track completion of syllabi and improvement in topics. Taking periodic mock tests and quizzes enables candidates to gauge their knowledge and timing. Additionally, recording feedback on performance in various subjects can identify areas for focused improvement. Engaging with peer reviews or mentor evaluations can provide external perspectives on progress and inform adjustments to study strategies, ensuring a more targeted approach.