The original home of the Magar people was to the west of Gandaki river, and roughly speaking, consisted of that portion of Nepal which lies between and around about Gulmi, Argha, Khanchi, and Palpa.
This bit of country was divided into twelve districts known as Barha Magarat (Confederation of Twelve Magar Kingdoms) which included Satung, Pyung, Bhirkot, Dhor, Garhung, Rising, Ghiring, Gulmi, Argha, Khanchi, Musikot, Isma.
During the medieval period, the whole area from Palpa to Gorkha was called the Magarat as the area was inhabited by Magars.
A second Confederation of Eighteen Magar Kingdoms known as Athara Magarat also existed which was primarily inhabited by Kham Magars.
Later on, Nepal was divided into different principalities (22 and 24 rajyas: chaubisi in barha Magarat region, baisya ni athara Magarat region).
Magars who were the kings and rulers in mid-western and western regions (12th and 18th magarat regions), their estates were eventually invaded by the Shah dynasty and annexed to a single Nepal.

Thapa is one of the six tribes (clans) of the Magar community (one of the core fighting forces of Gorkhali soldiers).
In former days, any Thapa (Magar) who had lost three generations of ancestors in battle became a Rana (Magar), but with the prefix of his Thapa clan.
Thus, a Reshmi Thapa (Magar) would become a Reshmi Rana (Magar).
To name a few—other Thapa Magar clans include Saru, Gaha, Bagalia, Darlami, and they are each further sub-divided into many sub-clans.

Magars from aristocrat families, most commonly Rana and Thapa, were also referred to as Kaji.
As per the survey of men who became Kaji in the years 1768-1814, at least 10 were Magars.

Famous Thapa Magars include Arun Thapa, Lakhan Thapa Magar, Biraj Thapa Magar, Victoria Cross holders like Kulbir Thapa, Lalbahadur Thapa and Netrabahadur Thapa.
The original home of the Magar people was to the west of Gandaki river, and roughly speaking, consisted of that portion of Nepal which lies between and around about Gulmi, Argha, Khanchi, and Palpa. This bit of country was divided into twelve districts known as Barha Magarat (Confederation of Twelve Magar Kingdoms) which included Satung, Pyung, Bhirkot, Dhor, Garhung, Rising, Ghiring, Gulmi, Argha, Khanchi, Musikot, Isma. During the medieval period, the whole area from Palpa to Gorkha was called the Magarat as the area was inhabited by Magars. A second Confederation of Eighteen Magar Kingdoms known as Athara Magarat also existed which was primarily inhabited by Kham Magars. Later on, Nepal was divided into different principalities (22 and 24 rajyas: chaubisi in barha Magarat region, baisya ni athara Magarat region). Magars who were the kings and rulers in mid-western and western regions (12th and 18th magarat regions), their estates were eventually invaded by the Shah dynasty and annexed to a single Nepal. 
Thapa is one of the six tribes (clans) of the Magar community (one of the core fighting forces of Gorkhali soldiers). In former days, any Thapa (Magar) who had lost three generations of ancestors in battle became a Rana (Magar), but with the prefix of his Thapa clan. Thus, a Reshmi Thapa (Magar) would become a Reshmi Rana (Magar). To name a few—other Thapa Magar clans include Saru, Gaha, Bagalia, Darlami, and they are each further sub-divided into many sub-clans. 
Magars from aristocrat families, most commonly Rana and Thapa, were also referred to as Kaji. As per the survey of men who became Kaji in the years 1768-1814, at least 10 were Magars. 
Famous Thapa Magars include Arun Thapa, Lakhan Thapa Magar, Biraj Thapa Magar, Victoria Cross holders like Kulbir Thapa, Lalbahadur Thapa and Netrabahadur Thapa.
Thapa