From this page you can link to university departments and organisations in Cambridge with significant library and archival holdings on South and Southeast Asia.
Alternatively you may prefer to consult the Cambridge Libraries portal. From this you can link to CamGuides, Cambridge LibGuides, the Cambridge Libraries Directory, and much more.
It is recommended that you also use ArchiveSearch to search across archival collections in Cambridge. It will enable you to discover primary sources and archives, including photograph collections, held in colleges, museums, faculties and libraries across the University of Cambridge.
Do also check out Cambridge Digital Library, which holds a significant and ever-growing collection of digital material relating to South or Southeast Asia, including many photographs, manuscripts, archives, artefacts and works of art. The simplest way to browse these collections is to enter the search term: Asia (or a country name). You can then refine hits by collection (list on left-hand side).
Suggestions for additional links would be welcomed by the Librarian.