Science collection is housed in these floors. Humanities collection is housed in these floors. European language and literature in 4th floor and Afro-Asian language and literature in 5th floor. Office of the Librarian is an Mezzanine floor, and so also Computer Section, Documentation Section, Acquisition Section, Archives of Contemporary History and Technical Section. Reference desks are provided on Ground floor for Social Science Collection, 2nd floor for Science collection, 4th floor for Humanities collection and 6th floor for Russian collection.
Staff is available on each floor to help.
Membership and Issue-Return services are centralised on Ground floor. Inter-Library Loan facility is available for Delhi Libraries and outside. Documentation Section is situated on Mezzanine floor where Articles from Social Science Periodicals are indexed and Search is available on Computer. Suchika, a documentation list is published on monthly basis. Catalogues are available on Ground floor, catalogue on computer is available for the books acquired w.e.f.