Common study materials recommended for UPSC preparation include NCERT textbooks, which provide foundational knowledge across subjects. Additionally, standard reference books such as Indian Polity by M. Laxmikanth, Modern History by Bipin Chandra, and Indian Economy by Ramesh Singh are often suggested. Aspirants are encouraged to supplement their preparation with current affairs magazines like Yojana and newspapers like The Hindu. Online platforms offering test series and video lectures, such as Unacademy and Byjus, are also commonly utilized. Comprehensive preparation often requires an amalgamation of varied resources catering to different aspects of the syllabus.