Kailali

Kailali forms part of the western Terai, south of the Himalayan foothills and between the larger river systems of the Kali and Rapti. Its lowland setting connected the hill frontier with the plains of northern India. Local society included Tharu communities, whose settlements and cultivation belonged to this forested and seasonally wet country. The district's later political boundaries cut across a landscape already linked by travel, landholding and relations between lowland villages and neighboring hill rulers.

A decisive change came after the Anglo-Nepalese War of 1814–1816. The Treaty of Sugauli required Nepal to cede the lowlands between the Kali and Rapti to the East India Company. Kailali belonged to this western belt, together with the country later organized as Kanchanpur, Bardiya and Banke. Although other Terai lands were returned under the supplementary arrangements of 1816, this western tract remained outside Nepal through 1837. The transfer changed the sovereign claim over the lowlands and separated them politically from the hill kingdom. Its history at the end of the period was therefore that of a recently transferred frontier district, alongside the continuing life of its agricultural communities.