You can access full episodes of Rangrasiya with English subtitles or dubbed versions on the following platforms:
: You can use the JustWatch Guide to check current legal availability in your specific country.
Indian television operates on a "fast-script" model. Characters speak rapidly, using nuanced Hindi, Rajasthani dialect, and military slang. For native Urdu/Hindi speakers, the dialogue is poetic. For English speakers or those learning the language, the show can be impossible to follow without subtitles.
This is the most accessible method. The official and Voot YouTube channels have uploaded the entire series in high quality. Unlike fan uploads, the official channel provides closed captions.