Wild water buffaloes (Bubalus arnee) are categorized as endangered on the IUCN Red List. With a global population of less than 4,000, the species has a very limited distribution spanning over less than 20,000 km² in Nepal, India, Sri Lanka, Cambodia, Myanmar, Thailand and Bhutan. In Nepal, Koshi Tappu Wildlife Reserve was designated for wild Asian buffalo; this reserve contains approximately 219 individuals, although there is no precise information on the number of pure-bred wild buffalo.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/call-conserve-wild-water-buffalo-bubalus-arnee-nepal
[2] http://ijcs.uaic.ro/pub/IJCS-11-23-Aryal.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/author/achyut-aryal
[4] http://admin.indiaenvironmentportal.org.in/category/author/tej-kumar-shrestha
[5] http://admin.indiaenvironmentportal.org.in/category/author/ashok-ram
[6] http://admin.indiaenvironmentportal.org.in/category/journal/international-journal-conservation-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/buffalo
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/endangered-species
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nepal
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-parks
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife-management
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kosi