Raja is a noble or royal Sanskrit title historically used by some Indian rulers and monarchs and highest-ranking nobles. The title was historically used in the Indian subcontinent and Southeast Asia.
Jai Singh I of Amber receiving Shivaji a day before concluding the Treaty of Purandar (12 June 1665), Shivaji was later conferred with the title of Raja by emperor Aurangzeb.
Raja Dhruv Dev of Jammu assesses a horse, by Nainsukh, c. 1740s; it was usual for horses to be shown off in front of a white sheet, to better appreciate their form.
The following list includes a brief about the titles of nobility or orders of chivalry used by the Marathas of India and by the Marathis/Konkanis in general.
Raja
…The title has equivalent cognates in other Indo-European languages, notably the Latin Rex and the Celtic Rix. The Maratha title "Rao" (or "Rao") functions as both a given name and an honorific title, derived from words like the Sanskrit "Rājā" meaning "king," is a associated with the…
A Maratha Durbar showing the Chief (Raja) and the nobles (Sardars, Jagirdars, Istamuradars & Mankaris) of the state.