Tibetan Buddhism[1] is the bouk o releegious doctrine an institutions characteristic o Buddhism in Tibet, Mongolie, Tuva, Bhutan, Kalmykie an certaint regions o the Himalayas, includin northren Nepal, an Indie (pairteecularly in Arunachal Pradesh, Ladakh, Dharamsala, Lahaul an Spiti destrict in Himachal Pradesh an Sikkim). It is the state releegion o Bhutan.[2]