Drukpa are the indigenous inhabitants of Bhutan and is made up of three main ethnic groups, the Sharchops, the Ngalops & the Lhotshampas (of Nepalese origin). The national language is known as Dzongkha. The majority of the population are predominantly Buddhists.  The faith still continues to play a fundamental role in the cultural, ethical & sociological development of Bhutan and its people. It permeates all strands of secular life. Annual Tsechus & Dromchoes are spiritual occasions in each district. Throughout Bhutan, stupas & chortens line in the roadside commemorating a holy place. Prayer flags are found fluttering on long poles maintaining a constant communications with the heavens. Bhutan retains the Tantric form of Mahayana Buddhism as its official religion.