The Sentinelese people of North Sentinel Island , which lies near South Andaman Island in the Bay of Bengal , reject contact ; attempts to contact them have usually been rebuffed , sometimes with lethal force . Their language is markedly different from other languages on the Andamans , which suggests that they have remained uncontacted for thousands of years . They have been called by experts the most isolated people in the world , and they are likely to remain so . During the 2001 Census of India , a joint expedition conducted during 23 – 24 February 2001 identified at least a few dozen individuals , but it was not exhaustive . Helicopter surveys after the 2004 Indian Ocean tsunami confirmed the Sentinelese survived , and there have been a few limited interactions with them since . The local Andaman and Nicobar administration has adopted an " eyes-on and hands-off " policy to ensure that no poachers enter the island . A protocol of circumnavigation of North Sentinel Island has been made and notified in consultation with the Indian government
2004 Indian Ocean tsunami
2004 Indian Ocean earthquake and tsunami
Uncontacted peoples