Dharan is one out of two sub-metropolitan towns in Province No. 1 of Nepal, in the Sunsari District, and is located on the foothills of the Mahabharat Range in the north with its southern tip touching the threshold of the Terai location at an altitude of 1148 ft. It serves as a buying and selling submit among the hilly location and the plains of Terai area. It become once the location of a recruitment middle for the Brigade of Gurkhas, opened in 1953.
The recruitment center is closed and the campus is now the house of B.P. Koirala Institute of Health Sciences given that 1993. Dharan sub-metropolitan town organised a Golden Jubilee birthday celebration of Dharan from 28 to 31 January 2011, marking the fiftieth year of establishment of the municipality. It is the second one-biggest metropolis of Eastern Nepal. It is also referred to as the football/footballer generating manufacturing unit of Nepal.
After a quick duration, King Mawrong Hang came to prominence and took over Terai lands of Chethar, Bodhey, Panthar, and Ilam. He named his kingdom Morang after his name and rose to energy. He subdued all of the Ten Limbu Kings of Limbuwan and have become their overlord. He died with none male heir and King Uba Hang took over as perfect ruler of Limbuwan in 849 – 865 AD. He made many spiritual and social reforms in Limbuwan. Uba Hang's son Mabo Hang succeeded him in 865 AD and ruled till 880 AD.