The Central Archaeological Library was established in the year 1902. It is housed in the second floor of the National Archives Annexe, Janpath, New Delhi. The collection of books at the library is around 1,00,000 which consists of books and journals.
These library houses books and periodicals on various subjects namely History, Archaeology, Anthropology, Architecture, Art, Epigraphy & Numismatics, Indology, Literature, Geology, etc. The library also houses many rare books, plates, original drawings, etc. The books are classified according to the Dewelly Decimal System. The ASI maintains library in each Circle and branch to cater to its academic and technical requirements leading to research of primary nature.