Bhutan , officially the Kingdom of Bhutan, is a landlocked state in South Asia, located at the eastern end of the Himalayas and bordered to the south, east and west by the Republic of India and to the north by the People's Republic of China. Bhutan is separated from the nearby country of Nepal to the west by the Indian state of Sikkim, and from Bangladesh to the south by the Indian states of Assam and West Bengal.
Bhutan existed as a patchwork of minor warring fiefdoms until the early 17th century, when the area was unified by Shabdrung Ngawang Namgyal, who fled religious persecution in Tibet and cultivated a separate Bhutanese identity. In the early 20th century, Bhutan came into contact with the British Empire, after which Bhutan continued strong bilateral relations with India upon its independence. In 2006, Business Week rated Bhutan the happiest country in Asia and the eighth-happiest in the world, based on a global survey.
Bhutan’s landscape ranges from subtropical plains in the south to the sub-alpine Himalayan heights in the north, with some peaks exceeding 7,000 metres (23,000 ft). The state religion is Vajrayana Buddhism, and the population of 691,141 is predominantly Buddhist, with Hinduism the second-largest religion. The capital and largest city is Thimphu. In 2008, Bhutan made the transition from absolute monarchy to constitutional monarchy, holding its first general election. Bhutan is a member of the United Nations and the South Asian Association for Regional Cooperation (SAARC); it hosted the sixteenth SAARC summit in April 2010. The total area of the country has been reported as 38,394 square kilometres (14,824 sq mi) since 2002. The area had previously been reported as approximately 46,500 km (18,000 sq mi) in 1997