The most reliable way to get accurate subtitles is through official streaming services.
The subtitles will be a direct translation of the original script and cultural nuances. RRR (2022) English Subtitles
Because RRR was filmed in Telugu and dubbed into several languages, the subtitles may vary slightly: The most reliable way to get accurate subtitles
Note: Netflix typically carries the version of the film. RRR (2022) English Subtitles
This is the primary home for RRR globally. Netflix provides high-quality English subtitles as well as a "Closed Captions" (CC) option for the hearing impaired.