The Bhut Jolokia or even known as ghost pepper, ghost chilli, naga jolokia is an interspecific hybird chilli is cultivated in the #NORTHEASTERN_INDIAN states such as Arunachal Pradesh, Assam, Manipur and Nagaland.
The below pasted images are taken from my small home based agri-firm.
U cannot imagine the it's taste before taking it in your tangue. It is 400 times hotter than the Tabasco Sauce. In the year 2007 it was certified as the world's hottest pepper by the Guinness World Records