Treaty of Sugauli
The Treaty of Sugauli (also spelled Sugowlee, Sagauli and Segqulee), that established the boundary line of Nepal, was signed on 4 March 1816 between the East India Company and Guru Gajraj Mishra following the Anglo-Nepalese War of 1814–16. == Background == Following the Unification of Nepal under Prithvi Narayan Shah, Nepal attempted to enlarge its domains, conquering much of Sikkim in the east and, in the west, the basins of Gandaki and Karnali and the Uttarakhand regions of Garhwal and Kumaon.