This book deals with the relevant features and topics of General studies of Bihar in a systematic and comprehensive manner by the use of simple and concise language for easy and quick understanding. Varied subjects covered are Geography, History, Art-Culture & Heritage, Polity & Administration and Economy of Bihar for BPSC Prelims, Mains and all other competitive exams. Salient Features of the Book: 1. General Studies of Bihar - All in One, it covered the complete syllabus of Bihar BPSC exams. 2. Subject wise detailed study material in english as per latest data (2021) 3. This book covered Physical Geography, ancient, medieval and modern History, Political system, Bihar Economy and Art-Culture of Bihar for competitive exams.