History of the Nepali language - नेपाली भाषा को इतिहास
About 500 years ago, Khas people from the Karnali-Bheri-Seti basin has been migrated towards eastward and settled in the lower valleys of the Gandaki Basin and it was compatible to rice cultivation. One famous family got settled in the Gorkha Kingdom about halfway between Pokhara and Kathmandu.
Lamjunge prince, Dravya Shah recognized himself on the throne of Gorkha with the help of local Khas and Magar in 1559 AD then he raised an army of Khas with the commandership of Bhagirath Panta. Later, in the late 18th century his heir Prithvi Narayan Shah raised up and improvised an army of Chhetri, Thakuri, Magars and Gurung people and possibly other hill tribesmen and set out to conquer and consolidate dozens of small principalities in the Himalayan foothills.