Retired in ISO 639-3: Split into Kamta (India) / Rangpuri (Bangladesh) [rkt] and Rajbanshi (Nepal) [rjs]
Excerpt from change request document:
What has formerly been listed as Rajbanshi_rjb in Nepal, India and Bangladesh can more accurately be represented by using 3 different names and 2 different iso codes. Survey revealed 62-69% intelligibility of Nepal Rajbanshi by speakers of Rajbanshi in West Bengal, India. What is spoken in India is intelligible with the variety in Bangladesh and can share an iso code but it is proposed to give them separate main names.