Well, 'Bhoot' is typically not based on real events. It's usually the imagination of the creators coming to life on the screen or in the story, designed to thrill and scare us.
In the Jungle Book Mowgli story, Mowgli's main adventures include his struggle against the evil Shere Khan. Shere Khan wants to kill Mowgli because he is a human. Mowgli, with the help of his animal friends, tries to outwit the tiger. He also has adventures in learning the jungle's secrets. He learns how to climb trees like a monkey, swim like a fish in the jungle rivers, and hunt small prey. His relationships with the other jungle animals, whether friendly like with Bagheera and Baloo or hostile like with Shere Khan, form the core of his adventures.
Yes, 'The Jungle Book' which features Mowgli has some elements based on real - life in India. Rudyard Kipling, the author, was inspired by the jungles of India and the various animals and cultures there. Mowgli, the boy raised by wolves, represents a fictionalized version of the relationship between humans and nature in that context.