Guwahati, April 17 -- Hidden deep in the Bay of Bengal, North Sentinel Island is one of the world's most mysterious and untouched places.

It is home to the Sentinelese tribe, who live without any contact with the modern world. Although the island is part of India's Andaman and Nicobar Islands, it remains very different because the people living there have chosen to stay away from outsiders.

The Sentinelese follow very old ways of life like fishing, hunting, and building simple shelters. They live without electricity, phones, the internet, or even writing. They have chosen to live this way for thousands of years. Every time someone tries to make contact, they refuse and sometimes react strongly. To protect them, the Indian government has...