text: Around 1743 AD King Prithvi Narayan Shah of Gorkha started to Unification of Nepal campaign, conquering many small states Gorkhalis also started to attacked in the Kirat Region. according to historians, before the unification of Nepal by Prithvivinaryan Shah from Banepa to Trishuli River and around Teesta River known as Kiratdesh the territory of Kiratis. Looking at the evidence of the time when Prithvinarayan Shah expanded the Gorkha kingdom, Dolakha, Ramechhap and Sindhuli fall in Wallo Kirat and the part from Sunkoshi to upper Arun river falls in Manjh Kirat . The area from Upper Arun Arun river to East Teesta River falls within Pallo Kirat . when Prithvi Narayan Shah invaded the Dhulikhel border area of (Wallo Kirat) in 1768 AD, that time the Kirat King of Dhulikhel Chaukhat Mahindra Sing Rai and his brother Namsing Rai strongly resisted and fought valiantly with Prithivinarayan shah's huge army for a very long time.   King Prithvi Narayan Shah had deployed Sardar Ram Krishna Kunwar to the invasion of Kirant regional areas comprising; Pallo Kirant, Wallo Kirant and Majh Kirant. There are many kings and chiftens and forts under Wallo Kirat and Majh Kirat area.  It is mentioned in the book "Mechi to Mahakali" Part-1 eight thums forts of (Wallo Kirat) Okhaldhunga, namely Bungnam, Taluwa, Chyanam, Solu, Tilpung, Chisankhu, Chuplu and Chauras. other forts in Majh Kirat are Hatuwa, Chawdandi, Mukali, Halesi, Khotehang, Kulum, Majhuwa, Khamtel, Pamakham, Rawa and Kepilas one by one, the Gorkhalis conquered all these forts in Wallo and Majh Kirat.
  At the time when Prithivi Narayan Shah conquered the Kirat region. In this historical period, Waling Hang was the king in Hatuwā Gaḍhi(Majh Kirat) in across the Arun River. The kings of Hatuwa extended their rule over part of Khalsa. The Khalsa territory present day Ankhisalla, Dhankuta District ruled by King Budhahang. Budhahang disappeared when Prithivi Narayan Shah attacked him.  During the war with the Shah king, he could revive all the dead Kirati warriors who were killed using his devine powers. On 29 August 1772, Ram Krishna Kanwar crossed Dudhkoshi river enter Chaudandi to invade of Kirant and Saptari region with fellow commander Abhiman Singh Basnyat.