1)State Central Library Trivandrum online Catalog
The catalog is available during working time of the Library
http://210.212.239.51:8080/jopacv06/html/SearchForm
2)Library of congress ONLINE CATALOG
http://catalog.loc.gov/
3)OCLC WORLDCAT
http://www.oclc.org/worldcat/
4) Delhi Public Library (DPL) online catalog powered by KOHA http://59.176.17.111/cgi-bin/koha/opac-search.pl
5) Cochin University of Science and Technology ( CUSAT ) Library catalog powered by KOHA http://opac.cusat.ac.in/cgi-bin/koha/opac-search.pl
