[1] It lay in the region of Malwa known as Umathwara after the ruling Umath clan of Rajputs, a branch of the Paramara dynasty.

[1] His descendants were held in high regard by the Delhi Sultans; Rawat Karam Singh, 4th in descent from Sarangsen, is said to have been made governor of Ujjain under Sikandar Lodi.

[1] He died in 1583 and was succeeded by his son Dungar Singh, who founded the town of Dungarpur near Rajgarh and made it his capital.

[1] After Dungar Singh was killed at Talen in 1603, Udaji inherited the estate and was recognised as the rightful heir in a sanad granted by Akbar.

[1] The capital was moved back to Dungarpur for the duration of Ajab Singh's regency, and the town of Rajgarh was founded in 1640.

[1] After Ajab Singh died in battle at Nalkhera in 1668, his son Paras Ram succeeded as manager of the estate.

[1] An initial division of villages had been made in 1675, leading to a sort of dual jurisdiction between Mohan Singh and Paras Ram that proved to be unmanageable.

[1] Thus, a formal division of the Umatwara territory into two states was made in 1681, with the ruler of Rajgarh (Mohan Singh) receiving five extra villages in recognition of his seniority.

[1] Animal species native to the area of Rajgarh State include various types of deer, leopard, and wild boar.

[1] He generally delegated executive authority to a diwan, who was responsible for the day-to-day administration of the state's various departments (Darbar, Revenue, Judicial, Public Works, Police, Educational, and Medical).

[1] Rajgarh State was divided into seven parganas: Newalganj, Biaora, Kalipith, Karanwas, Kotra, Sheogarh, and Talen.

[1] Each pargana was overseen by a tahsildar, who served as the chief revenue officer and also presided over the lowest level of criminal courts in the state.

One of its ruler Rawat Moti Singh, converted to Islam under the influence of his Muslim courtier and adopted the title of Nawab.