The later arrivals are Newars, Bahuns and Chettris as missionaries of Hindu religion in the 1790s during the reign of King Prithivi Narayan Shah, Pratap Singh Shah and Rana Bahadur Shah. The Gurungs, Magars and Tamangs living in Limbuwan are also later arrivals who came as soldiers of Gorkha King during the Limbuwan Gorkha War in 1780s. The madheshi settlers moved north and east from the Mithila region in the west, and thus also came during this time to cultivate the terai lands of Limbuwan.
Although Limbus, Dhimals, Koche and Yakkha are the aboriginal and native inhabitants of Limbuwan, there are a minority in their own territory today, due to mass immigration in eighteenth century sponsored by King of Nepal to cultivate the fertile lands of Limbuwan.
The Limbuwan Gorkha War was a series of battles fought between the King of Gorkhas and the rulers of various principalities of Limbuwan from 1771 to 1774 AD. The war came to an end in 1774 with the Limbuwan Gorkha treaty which recognised Limbu peoples' right to Kipat land in Limbuwan and full autonomy. History of Limbuwan covers the rest of the Limbuwan History.
After the conquest of Majh Kirant (Kirant Rai kingdoms) by the Gorkhas, they invaded Limbuwan on two fronts. One front was in Chainpur (present day Sankhuwasabha District) and the second front was in Bijaypur (present day Dharan, Sunsari District). Bijaypur was the capital of the Morang Kingdom of Limbuwan.
