The Assamese alphabet or Assamese script, is a writing system of the Assamese language. This script was also used in Assam and nearby regions for Sanskrit as well as other languages such as Bodo (now Devanagari), Khasi (now Roman), Mising (now Roman), Jaintia (now Roman) etc. It evolved from Kamarupi script. The current form of the script has seen continuous development from the 5th-century Umachal/Nagajari-Khanikargaon rock inscriptions written in an eastern variety of the Gupta script, adopting significant traits from the Siddhaṃ script in the 7th century. By the 17th century three styles of Assamese script could be identified ("baminiya", "kaitheli" and "garhgaya") that converged to the standard script following typesetting required for printing. The present standard is identical to the Bengali alphabet except for two letters, (ro) and (vo); and the letter (khya) has evolved into an individual consonant by itself with its own phonetic quality whereas in the Bengali alphabet it is a conjugate of two letters.