Aspirants can improve their critical reading skills for the UPSC exam by actively engaging with diverse texts, including newspapers, academic articles, and reports. Techniques like annotating, summarizing key points, and questioning the material can deepen understanding. Establishing a reading routine focusing on current affairs and historical content helps in retaining information. Joining discussion groups or study circles encourages critical analysis and enables candidates to articulate their perspectives on various topics effectively, enhancing their ability to tackle relevant questions in the exam.