Arunachal Pradesh

History
The history of pre-modern Arunachal Pradesh remains shrouded in mystery. It is popularly believed, and may be speculatively assumed, that the first ancestors of most indigenous tribal groups migrated from pre-Buddhist Tibet two or three thousand years ago, if not before, and were joined by Tibetic and Thai-Burmese counterparts later. Oral histories possessed to this day by many Arunachali tribes of Tibeto-Burman stock are much richer, and point unambiguously to a northern origin in modern-day Tibet. Again, however, corroboration remains difficult. From the point of view of material culture, it is clear that most indigenous Arunachali groups align with Burma-area hill tribals, a fact that could either be explainable in terms of a northern Burmese origin or from westward cultural diffusion.

Recent excavations of ruins of Hindu temples such as the 14th century Malinithan at the foot of the Siang hills in West Siang are somewhat automatically associated with the ancient history of Arunachal Pradesh, inasmuch as they fall within its modern-day political borders. However, such temples are generally south-facing, never occur more than a few kilometers from the Assam plains area, and are perhaps more likely to have been associated with Assam plains-based rather than indigenous Arunachali populations. Another notable heritage site, Bhismaknagar, has led to suggestions that the Idu (Mishmi) had an advanced culture and administration in pre-historical times. Again, however, no evidence directly associates Bhismaknagar with this or any other known culture. The third heritage site, the 400-year-old Tawang Monastery in the extreme north-west of the state, provides some historical evidence of the Buddhist tribal peoples. Historically, the area had a close relationship with Tibetan people and Tibetan culture, for example the sixth Dalai Lama Tsangyang Gyatso was born in Tawang.

Arunachal Pradesh Established in 20th February 1987.

Geography
Much of Arunachal Pradesh is covered by the Himalayas. However, parts of Lohit, Changlang and Tirap are covered by the Patkai hills. Kangto, Nyegi Kangsang, the main Gorichen peak and the Eastern Gorichen peak are some of the highest peaks in this region of the Himalayas.

At the lowest elevations, essentially at Arunachal Pradesh’s border with Assam, are Brahmaputra Valley semi-evergreen forests. Much of the state, including the Himalayan foothills and the Patkai hills, are home to Eastern Himalayan broadleaf forests. Toward the northern border with China, with increasing elevation, come a mixture of Eastern and Northeastern Himalayan subalpine conifer forests followed by Eastern Himalayan alpine shrub and meadows and ultimately rock and ice on the highest peaks.

Economy
Arunachal Pradesh accounts for a large percentage of India’s untapped hydroelectric power production potential. In 2008, the state government of Arunachal Pradesh signed deals with various Indian companies planning some 42 hydroelectric schemes that will produce electricity in excess of 27,000 MW. Construction of the Upper Siang Hydroelectric Project, which is expected to generate between 10,000 to 12,000 MW, began in April 2009. Another missed economic opportunity is that of tourism. Boasting a scenic natural beauty that equals and in some respects surpasses that of other Himalayan regions such as Sikkim, Bhutan, and Nepal.

Source: Wikipedia