Jumla part of Karnali province, is one out of ten districts of Karnali. The district, with Jumla as its district headquarters, covers a place of 2,531 square kilometres and had a populace of 89,427 in 2001 Nepal census and 108,921 in 2011 Nepal census. Nepali language became originated first at Sinja Valley of Jumla district, which known as Khas language then. Sinja became the capital of Khas Kingdom, Therefore, the Nepali dialect "Khas Bhasa" is still spoken a few of the people in this place.
The Jumla Kingdom became one of the many kingdoms that dotted Nepal earlier than its reunification by using King Prithvi Narayan Shah of Gorkha and later by using his younger son Bahadur Shah. The nation changed into based around 1404 when Baliraja, who married the daughter of the final ruler of the Yatse Kingdom, succeeded his father-in-regulation. It became one of the maximum powerful kingdoms in western Nepal, being one of the 22 Baise principalities of the Karnali vicinity which had as soon as been a part of the bigger Yatse Kingdom.
After centuries of intermittent war it appropriated the kingdom of Mustang in 1760. In the overdue 18th century the Jumla kingdom correctly defended itself against the first attack by means of King Prithivi Narayan Shah, and legend even has it that he got injured in the war. Later, with the assist of the kingdoms surrounding Jumla, Bahadur Shah attacked again and annexed Jumla for the Gorkha kings in 1789. The Jumla kings had been Thakuris just like the Gorkha Kings.