Common sources for obtaining study material for UPSC include a variety of platforms. Aspirants often turn to standard textbooks such as NCERT for foundational subjects, as well as reference books tailored to the syllabus. Coaching institutes also provide structured study material and curated content specific to the exams. Online platforms offer a wealth of resources, including video lectures, blogs, and e-books. Additionally, aspiring candidates can utilize library resources and engage with online forums for shared materials. Overall, a combination of traditional and digital media enriches their study experience.