As per the latest survey of the primate, 7,396 golden langurs in India.
The Primate Research Centre NE India (PRCNE), Assam Forest Department, Bodoland Territorial Council, Salim Ali Centre for Ornithology and Natural History (SACON), and Conservation Himalayas have completed the survey in two phases.
The golden langur (Trachypithecus geei) is found in the Manas Biosphere Reserve and all fragmented forests in the western part of Assam.
The second phase of the survey was focused on the habitats of golden langurs in the Bongaigaon, Kokrajhar, and Dhubri districts of western Assam.
The survey method is very simple, cost-effective, and robust for arboreal and small-group living primates.
The survey found 7,720 golden langurs in 706 unique groups and 31 lone males or floating males.
The population of golden langurs is divided into two major sub-populations.
The northern population of the primate with the golden sheen is about 5,566 in 534 groups.
The population of the southern fragments was estimated at 1,830 langurs in 173 groups.
In the earlier estimation, 6,000 golden langurs were reported in India.