The Central Division included in its limits, besides the Kingdom of Gurkha proper, 24 other independent principalities, collectively called the Chaubisia Raj, or 'country of the 24 kings' in the Gandaki region, and the Western division or Karnali region which was inhabited by Doti and other non-Gurkha tribes and until the close of the last century was divided into 22 separate principalities which were collectively called the Baisi Raj and were all tributary to the Raja of Jumla. At the time of Prithvi Narayan Shah, 60 Princely states were said to exist.
Extract from 'The Gurkhas' of Eden Vansittart (based upon the 'Notes on Nepal', 1895 AD and 'Notes on Gurkhas' 1890 AD), Anmol Publications, New Delhi, Re-print 1993
In Central Nepal : Annexed 1768-1769
the Newar Kingdoms of Bhatgaon, Kathmandu and Patan (considered as the predecessors of present-day Nepal, although they only controlled a very small portion of its territory)
the Chaubisi ("Twenty-Four") a loose confederation of several - traditionally 24, but exact number varied at different times - Kha Kingdoms (Gurkha, Kaski, Lamjung, etc.)
the Kha Kingdom of Makwanpur
In Eastern Nepal : Annexed 1769-1775
the Kha Kingdoms of Vijayapur and Chaudandi
the Limbu and Rai tribal authorities
In Western Nepal : Annexed 1782-1790
the Baisi ("Twenty-Two"), a loose confederation of several - traditionally 22, but exact number varied at different times.
the Kha Kingdoms (Achham, Dullu, Jumla, etc.)
the Magar tribal authorities
Several principalities in the western hill region which had been abolished during the latter part of the eighteenth century were restored during the 1860's in appreciation of the cooperation which they rendered during the Nepal-Tibet war (1855-56), as well as during the military expedition which Prime Minister Jung Bahadur undertook in 1857 to help the British suppress the Indian mutiny. These Rajyas included the following:-
1. Garhunkot - 2. Garkot - 3. Bhirkot - 4. Kaski - 5. Malneta
In 1851-52, there were 3 Rajyas, or principalities of feudatory status, in the Kingdom of Nepal which enjoyed full internal autonomy on payment of an annual tribute (Sirto).
1. Bajhang - 2. Mustang - 3. Thalahara