The Buranjis were written during the Ahom dynasty in the Assamese language using the Assamese alphabet. The present standard is identical to the Bengali alphabet except for two letters, ৰ (ro) and ৱ (vo) and the letter ক্ষ (khya) has evolved into an individual consonant by itself with its own phonetic quality whereas in the Bengali alphabet it is a conjunct of two letters. By the 17th century three styles of Assamese alphabets could be identified ( baminiya, kaitheli and garhgaya) that converged to the standard script following typesetting required for printing.
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. 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. The Assamese alphabet ( Assamese: অসমীয়া বৰ্ণমালা, Oxomiya bornomala) is a writing system of the Assamese language and is a part of the Bengali-Assamese script.
