Chaubisi Rajya, Chaubise Rajya or Chaubisye Rajya (Nepali: चौबीसी राज्य, चौबीसे राज्य, lit.'24 principalities'), were sovereign and intermittently allied petty kingdoms ruled by the Magar and Thakuri kings located at the intersection of Himalayas and the Indian subcontinent.[1] One of these kingdoms, Gorkha, annexed the others, becoming the present-day country of Nepal. This conquest began soon after Prithvi Narayan Shah ascended to the Gorkha throne in 1743 AD.[2] The Chaubisi Rajya were annexed during the unification of Nepal from 1744 to 1816 AD.[1] A parallel group of 22 small kingdoms, Baisse Rajya (Nepali: बाइस्से राज्य), existed to the west of the Gandaki Basin.[3]
The Shah Kingdom was founded by Drabya Shah, the youngest son of Yasho Brahma Shah, king of Kaski and Lamjung, his eldest son became the king of Kaski and Lamjung which created a fight for supremacy.[4]Palpa was one of the biggest and most powerful kingdoms; the rulers were able to create independent kingdoms in Tanahu, Makwanpur and Vijaypur.[5] Many rulers from Nepal wanted to consolidate the principalities.[citation needed] The first battle took place in Nuwakot. Prithvi Narayan Shah commanded Kaji Biraj Thapa Magar of Gorkha to attack but he delayed his invasion.[citation needed] Shah sent another force led by Maheshwar Panta to attack but they were badly defeated.[citation needed] For preparation, the king obtained new weapons from Banaras, increased military strength, and made Kalu Pande his chief minister who helped him with planning.[6]
Chief of Nuwakot Jayanta Rana Magar (former Kaji of Gorkha) was defending a Nuwakot and knowing that Gorkha is going to attack them in near future had gone to take help from Jaya Prakash Malla. Meanwhile, on September 1744 Prithvi Narayan Shah led the surprise attack on Nuwakot. While Jayanta Rana Magar was away, his son Commander of Nuwakot Sankha Mani Rana Magar tried to defend, but lost. In 1744, Shah conquered Nuwakot, then went on to win a battle against Belkot (Jayanta Rana Magar second fort) .[6]