The Gurung people, also called Tamu, are an ethnic group that migrated from Tibet in the 6th century to the central region of Nepal. Gurungs, like other east Asian featured peoples of Nepal such as Sherpa, Tamang, Thakali, Magar, Manaaggi, Mustaaggi, and Walunggi, are the indigenous people of Nepal's mountain valleys. Their ancestors practiced Bi_n (shamanism), later converting to Tibetan Buddhism. They live primarily in north west Nepal in Gandaki zone, specifically Lamjung, Kaski, Mustang, Dolpa, Tanahu, Gorkha, Parbat and Syangja districts as well as the Manang district around the Annapurna mountain range. Some live in the Baglung, Okhaldhunga and Taplejung districts and Machhapuchhre as well. Small numbers are believed to be living in India's West Bengal and Sikkim, as well as Bhutan.