OnePlus launched the 9RT as a "flagship alternative" of sorts in 2021; however, it has been a Chinese-market exclusive to date. That is now slated to change, as a device that could be an international variant of the high-end phone has been spotted in new leaks, some of which seem to pertain to India specifically.
https://www.notebookcheck.net/OnePlus-has-an-international-version-of-the-9RT-ready-to-debut-in-India.580437.0.html