Physical Environment of the Eastern Development Region of Nepal
This post is dedicated to the physical environment of the Eastern Development Region of Nepal. Eastern Development Region (पूर्वाञ्चल, Purbanchal in Nepali) is a developed region of Nepal. Dhankutta is the headquarters of this region. The Eastern Development Region consists of about 28,456 square kilometre area. There are 3 zones, 16 districts, 893 Village Development Committees (VDCs), one sub-metropolitan and 34 municipalities in the eastern development region of Nepal. The population density in the central development region is lesser than central development region.
The Eastern Development Region consists of 3 zones and 16 districts. It has an area of 28,456 sq. km. In 2011, this region has a huge population.

The region looks like a square. It stretches from north to south. It has all the geographical features present in the country. Like other development regions, this eastern region also has the same three-fold geographical division- Himalayan in the north, Hilly in the middle and Terai in the southern part of Nepal varying between an altitude of 60 m and 8,848 m. Terai, extended from east to west, is made up of alluvial soil, to the west of the Koshi River, in between Mahabharat and Churia, there elongates a valley called Inner Terai. Cherai rages, Mahabharat, hills of various heights, basins, tars and valleys form hilly regions. Some parts of this region are favourable for agriculture but some other parts are not.
The Himalayans region, in the north, consists of many mountain ranges. Mahalangur Kumbhakarna, Umvek, Lumbasumba and Janak are some of them. The highest mountain in the world, Mount Everest (8848 metres), and the third highest mountain, Kanchanjunga (8598 meters) lie in this region. These two men Tenzing Norgay Sherpa (Nepali) and Sir Edmund Hillary (British) are the first persons who climbed this highest peak for the first time in 1953 A.D. It has the Himalayas in the north, hills in the middle and Terai in the south. The southern and eastern parts border India and the northern part borders China. Other high peaks in this region are Makalu (8,463 metres), Lhotse (8,516 metres) and Choyu (8,201 metres).
Some important mountain passes are Tiptala, Mane, Pop, and Nampa. Kitana Kalan (60 m), Nepal’s lowest point is located in the Jhapa district of this development region.
Kitana Kalan (60 m), Nepal’s lowest point is located in the Jhapa district of this development region.
Cherai ranges, Mahabharat, hills of various altitudes, basins, “tars and valleys form the Hilly region. Some parts of this region are favourable for agriculture but some other parts are not.
Terai extends from the Mechi river in the east to the Kamala river in the west. Kechanakalan, the place at the lowest altitude of 60 metres from sea level lies here. It is made up of alluvial soil. This fertile land is important to grow a variety of crops. To the west of the Koshi river, in between Mahabharat and Churai, there elongates a valley called Inner Terai (Doon).
The Koshi river flows through the region with its seven tributaries. The seven tributaries of the Koshi are Arun. Tamor. Dudhakoshi. Like. Tamakoshi. Sunkoshi and Indrawati. That’s why the Koshi is known as the Sapta Koshi. The Koshi is the largest river in the country. It mixes with the Ganga river in India. The Koshi has the potential for a large amount of hydroelectricity. However, we are not able to get enough benefits. The other main rivers are Mechi, Kankai, Ratuwa, and Honu. Tawa and Kabeli.
There are many river basins and gentle slopes as well. Cherai, Mahabharat, and many basins, tars and valleys form the Terai region. Between the Churia and Mahabharat, a low land of inner Terai exists. The Koshi river flows through the region with its seven tributaries like Indrawati, Likhu, Tamor, Dudhkoshi, Arun, Tamakoshi and Bhotekhoshi (Sunkoshi). There are other rivers as well.
The Khumbu, Yalung and Barun glaciers are notable landmarks as well. Nagma Tal is the region’s most famous lake. It is famous for its natural vegetation. The Sagarmatha National Park lies in this region. Makalu Barun National Park, Makalu Barun Conservation Area, Kanchanjungha Conservation Area and Koshi Tappu Wildlife Reserve have been ted here. This region receives sufficient rain from the monsoon winds coming from the Bay of Bengal.
Tundra vegetables, coniferous forests, deciduous monsoon forests and sub-tropical evergreen woods are vegetation found here. Sub-tropical, temperate, sub-temperate, and alpine and tundra types of climates are found here.
This region is populated by people of various castes and tribes. Brahman, Chhetry, Rai, Limbu, Sherpa, etc. are some of the main tribes found in this region. The terai is inhabited by belt tribes like Rajbanshi, Satar, Dhimal, Danuwar and Musahar. Each of the tribes has its own typical culture. Despite different customs and traditions, they have unity in many aspects.
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Nepal’s largest river system (the Koshi) and its longest waterfall (the Hyatrung in Tehrathum) are located in this region. One more important thing, Nepal’s biggest forest, the Charkoshe Jhadi is found in the Sunsari district of this region.
Gaighat, Itahari, and Katari are important parts of the inner Terai. It lies in the Terai to the south of Churia. The Terai region has fertile alluvial soil. The river Sunkoshi originates from the Langtang Himal and flows towards the east to join the Koshi along with its tributaries. This region includes the biggest river Koshi in Nepal. Most of this development region is irrigated by the river Koshi. It merges into the holy river Ganges after entering India.
There are other rivers as well. The other important rivers of the eastern development region are Kamala, and Mainabati, There are the Sagarmatha national park and Makalu Barun National park in the eastern Development Region. Biratnagar, Dharan, Dhankutta, Itahari, Lahan, Rajbiraj, Gaighat etc. are major cities in the eastern development region.
Finally, all we knew is that Nepal is divided into 5 development regions, 14 zones and 75 districts. There are 3 zones (Mechi, Koshi and Sagarmatha), 16 districts (Taplejung, Panchthar, Ilam, Jhapa, Morang, Sunsari, Terhathum, Sankhuwasabha, Vojpur, Okhaldhunga, Khotang, Solukhumbu, Udaypur, Saptari and Siraha), 893 Village Development Committees (VDCs), one sub-metropolitans (Biratnagar) and 14 municipalities (Ilam, Bhadrapur, Damak, Mechinagar, Dharan, Inaruwa, Itahari, Dhankutta, Khandbari, Rajbiraj, Lahan, Siraha and Triyuga) in the eastern development region of Nepal.
Physical Environment of the Eastern Development Region of Nepal
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- economic activities of the eastern development region of Nepal,
- lakes in the eastern development region of Nepal,
- outline map of the eastern development region of Nepal
- Socio-Economic Environment of the Eastern Development Region of Nepal






