DEFENCE SCIENCE LIBRARY
DSL is one of the biggest technical libraries in Delhi and facilitates free access to information to its readers.
It has a collection of about 53,000 books; 34,000 technical
reports; 17,800 standard specifications; 20,000 reprints and 8,000
other micro-documents, agood collection of American, British,
German & Russian patents and CD-ROM databases like the NTIS,
LISA, INSPEC etc.