The Bihar Vidhan Mandal Library, Patna was established around year 1925 to facilitate the reading and referencing by members and staff of Vidhan Mandal. The Bihar Vidhan Mandal Library has over 40,000 books and many thousands of other reading material. It also has archived reference books, Encyclopaedia, Dictionaries, Atlas along with proceedings, Debates, Committee Reports, Newspaper clippings etc. These materials are being regularly referred by the members of both the houses as well as staff to perform their routine work. Library has full infrastructure requisite for performing its day to day operations.