Indigenous ethnic groups include the Newars, Bhutia, Sherpas, Limbus, Rais, Magars, Chettris, Bahuns, Thakuris, Gurungs, Tamangs, Yolmos, Bhujels, Sunuwars, Sarkis, Damais and the Kamis. The other non-native communities as old as the Nepalese are the Bengalis, Muslims, Anglo-Indians, Chinese, Biharis and Tibetans who escaped to Kalimpong after fleeing the Communist Chinese invasion of Tibet. Kalimpong is home to Trinley Thaye Dorje—one of the 17th Karmapa incarnations. Kalimpong is the closest Indian town to Bhutan's western border, and has a small number of Bhutanese nationals residing here. Hinduism is the largest religion followed by Nijananda Sampradaya, Buddhism and Christianity. Islam has a minuscule presence in this region, The Oldest settlers include people residing since the mid of 19th Century and also mostly Tibetan Muslims who fled in 1959 after Chinese invasion of Tibet. The Buddhist monastery Zang Dhok Palri Phodang holds a number of rare Tibetan Buddhist scriptures. There is a Mosque, Kalimpong Anjuman Islamia Established in 1887 in the bazaar area of Kalimpong.