When studying for the vast UPSC syllabus, prioritizing topics is essential. Candidates should start by identifying high-yield subjects appearing frequently in exams, such as Indian polity or geography. A structured approach involves breaking topics down into manageable segments and allocating dedicated study time. Focusing on core concepts before exploring advanced topics can ensure a solid foundation. Regularly revisiting previous subjects and connecting them with current affairs helps in reinforcing retention, thereby enabling aspirants to navigate the extensive syllabus efficiently.