North Sentinel Island inhabitants of an uncontacted peoples community these indigenous peoples are living without contact with the nearby community or the global community. These groups of people decide to remain their life in isolation but they are protected by the government of India the area is also patrolled by the Indian Navy. Basically, the island belongs to the south Andaman administrative district which is part of the Indian union territory. According to the 2018 report, the government of India excluded 29 islands including the north sentinel as restricted area permits. The government of the home ministry announced in November 2018 that the lifting of the prohibition was intended to allow pre-approve researchers and anthropologists to visit Sentinel Island. The Andaman and Nicobar Island protection of aboriginal tribes act of 1956 forbids travel to the island as well as any approach closer than 9.26 km in order to protect the tribal inhabitants from the exotic diseases against which they have no protective antibodies. 
Geographically this island is situated 22 miles west of the town of Wandoor in South Andaman Island, 50 kilometers. West of port Blair, and 37 miles north of its counterpart south Sentinel Island. It has an approximately square contour with an area of around 23.04 square miles.
North Sentinel is bordered by coastal ecosystems and does not have any natural harbors. Except for the shore, the overall region is forested. The island is surrounded by a thin white-sand beach, behind which the ground gradually rises to near the center. Reefs extend from the shore all the way around the island. Constance Island, sometimes known as " Constance Islet," is a forested islet off the southeast shore, near the reef's edge.  
The 2004 Indian Ocean earthquake shifted the tectonic plate beneath the island, causing it to rise by huge swathes of the surrounding coral reefs were exposed and turned into permanently dry ground or shallow lagoons, increasing the island's limits by as much as on the west and south sides and connecting Constance Islet to the main island.  
Historically anthropologists and researchers believe that the Sentinelese are more intimately linked to Africans than to Indians, leading to ideas that the island was founded by visitors from Africa's west coast. Exports have not yet classified the  Sentinelese language into dialects, but they have found that the aboriginal inhabitants of the  Andaman and Nicobar  Island chain are ethnically Austroasiatic. Their language is similar to that of the Vietnamese. Another indigenous group of the island chain, the great Andamanese finally merged into the Indian way of life, losing their unique tradition, rich culture, and language in the process. 
The remote Sentinelese tribe has always piqued people's interest. One of the earliest reported endeavors at contact occurred in 1880 when 20-year-old Maurice Portman abducted an elderly couple and four children from North Sentinel Island in accordance with British imperial policy for isolated tribes.
He planned to bring them back to Britain, treat them generously, learn their habits, then shower them with gifts before returning them home. The old couple fell unwell upon arriving at Port Blair, the capital of the Andaman Islands because their immune systems were unusually vulnerable to illnesses from the outside world. Portman and his men returned the children to North Sentinel island, worried they would die as well. Sentinelese isolation lasted over 100 years, till 1967 when the Indian government tried to contact the tribe again. Every time Indian investigators attempted to connect with the tribe, they retreated into the woods.  Finally, the researchers decided to leave gifts on the beach and retreat.
Interaction attempts by a variety of parties, including Nat Geo, a Naval sailing ship, and the Indian government, were all met with a constant curtain of bows in 1974, 1981, 1990, 2004, and 2006. Since 2006, when efforts to recover the bodies of the tragic mud crabbers were unsuccessful, only one additional attempt at communication has been attempted.
John Allen Chau, a 26-year-old American missionary educated and deployed by Missouri-based All Nations, was slain in November 2018 on an unlawful trip to the restricted island with the intention of preaching Christianity to the Sentinelese. Indian authorities detained seven people on suspicion of assisting Chau's unlawful entry to the island. Under Indian law, entering a 5 nautical mile radius around the island is prohibited. Fishermen reported seeing tribespeople dragging Chau's body around, but officials had yet to independently confirm his death as of November 25, 2018. The situation is being investigated as a murder, although no charges have been filed against the tribesmen.

