Bhutan’s indigenous population is the Drukpa formed by the three main ethnic groups, the Sharchops, the Ngalops & the Lhotshampas (of Nepalese origin). The national language is Dzongkha. The Buddhist faith plays fundamental role in the cultural, ethical & sociological development of Bhutan and its people. Bringing with it a reverence for the land & its well being; Annual festival of Tsechus & Dromchoes are spiritual occasions in each district. Throughout Bhutan, stupas & chortens line up along the roadside marking the holiness of the place. Prayer flags are found fluttering on long poles maintaining constant communications with the heavens. Bhutan retains the Tantric form of Mahayana Buddhism as its official religion.