The Bhut Jolokia (bhut jôlôkia; Bangla: নাগা মরিচ naga morich), as it is commonly known—also known variously by other names (see etymology section below) in its native region, sometimes Naga Jolokia—is a chili pepper previously recognized by Guinness World Records as the hottest pepper in the world. The pepper is typically called the ghost chili or ghost pepper by U.S. media.
The Bhut Jolokia/naga jolokia is an interspecific hybrid cultivated in the Assam region of northeastern India and parts of neighbouring Bangladesh. It grows in the Indian states of Assam, Nagaland and Manipur, and the Sylhet region of Bangladesh. It can also be found in rural Sri Lanka where it is known as Nai Mirris (cobra chili). There was initially some confusion and disagreement about whether the Bhut was a Capsicum frutescens or a Capsicum chinense pepper, but DNA tests showed it to be an interspecies hybrid, mostly C. chinense with some C. frutescens genes.
In 2007, Guinness World Records certified the Bhut Jolokia as the world’s hottest chili pepper, 401.5 times hotter than Tabasco sauce. On December 3, 2010, the Bhut Jolokia was replaced as the hottest known chili pepper by the Naga Viper pepper, which has an average peak Scoville rating more than 300,000 points higher than an average Bhut Jolokia – but still not higher than the hottest ever recorded Dorset Naga. In February 2011, Guinness World Records awarded the title of “World’s Hottest Chilli” to the Infinity chilli grown in Grantham, England. This chilli rates at 1,067,286 units on the Scoville scale. Later the same month, on February 25, 2011, the title returned to the Naga Viper pepper with a rating of 1,382,118 Scoville Heat Units (SHU). The current “world’s hottest” is the Trinidad Scorpion Butch T, officially tested at 1,463,700 SHU. These figures are highly controversial among the pepper growing community and tests with more rigorous scientific standards are yet to be conducted on the many various peppers vying for “world’s hottest” status.
Read more about Naga jolokia in news: http://wlivenews.com/united-kingdom/2011/10/09/london-hottest-curry-contest-lands-two-young-women-in-hospital.html