The Tamangརྟ་དམག་ (Devnagari: तामाङ; tāmāng), or Tamag, are the indigenous inhabitants of the Himalayan regions of Nepal and India, their ancestral land is called Tamsaling. They are the aborigines of Yambu, or Kathmandu Valley, who had self-rule and autonomous roughly 2 centuries before present, systematically displaced during the expansion period of Gorkha Kingdom and this continues to the present day, the Central Development Region, Nepal remains where 70% of the population reside. The traditionally Buddhist Tamang are the largest Tibeto-Burman ethnic group within Nepal, constituting 5.6% of the national population of over 1.3 million in 2001, increasing to 1,539,830 as of 2011 census, yet contested. Tamang are also a significant minority in Sikkim and Darjeeling District of West Bengal