Shi Yomi district

Shi Yomi district is one of the 23 districts of Arunachal Pradesh state in northeastern India. Shi-Yomi district was created on 9 December 2018 by dividing the West Siang district when northern areas along the China border were made into a newly created Shi-Yomi district and the remaining southern areas remains the part truncated West Siang district. It has its headquarters at Tato.
History.
It was once a part of the Chutiya kingdom. 
Location.
After Mechuka the McMahon line separates Indian territory and Chinese territory.
Demographics.
Shi Yomi district is home to the people of Adi, Tagin and Memba tribes. Religions practiced in the valley include Donyi Polo, Tibetan Buddhism, and Christianity.
The languages spoken in Shi-Yomi district are Adi, Tagin and Memba.
Divisions.
The district was divided four administrative units namely Mechuka, Tato, Pidi and Manigong. Mechuka is part of Arunachal East Lok Sabha constituency.
Transport.
Prior to the Arunachal Pradesh Frontier Highway construction of the modern road, the only access was via an airstrip, used by the Indian Air Force to supply goods to local people.
The Indian Air Force maintains an airstrip, known as the Advanced Landing Ground (ALG) in Mechuka. The airstrip is used frequently to bring in vital supplies from cities in Assam via Antonov-32 aircraft and helicopters. The runway was renovated, strengthened, upgraded to a concrete runway and extended to 4,700 feet in 2017 by the government. The area has a significant military presence, which also creates some employment opportunities for civilians.
There is a twice a week helicopter service under the UDAN scheme. Government of Arunachal Pradesh has invited bids from the private airlines to operate a 9-seater fixed-wing air service which will not be under the UDAN scheme.
Tourism.
Shi Yomi district's Mechuka is gradually becoming a popular tourist destination in Arunachal Pradesh due to its scenic beauty, exotic tribes, gentle hills, and snow-capped mountains and Siom River. The Siom River, which flows through Mechukha also provides a scenic view in the valley. The major tourist attraction here is a 400-year-old Samten Yongcha monastery of Mahayana Buddhist sect is a contemporary of the much-revered Tawang Monastery, which is located at a hilltop in the westernmost part of Mechukha.