The Assamese script (অসমীয়া আখৰ Ôxômiya Akhôr)[1] is a variant of the Eastern Nagari script also used for Bengali and Bishnupriya Manipuri. The Eastern Nagari script belongs to the Brahmic family of scripts and has a continuous history of development from Nagari script, a precursor of Devanagari. By the 17th century three styles of Assamese script could be identified (baminiya, kaitheli and garhgaya)[2] which gave way to the standard script which followed the typeset script. The present standard is identical to the Bengali script except for two letters.
Buranjis were written during Ahom dynasties in Assamese language using assamese script. Earliest form of evidence Assamese script is found in the Charyapada, the Buddhist songs. They are supposed to be composed within a time-frame of four hundred years from 8th century AD to 12th century AD. In 14th century Madhava Kandali used Assamese script to compose the famous Kotha Ramayana which is first translation of Ramayana in a regional Indian language after Valmiki Ramayana in Sanskrit. Later, Srimanta Sankardeva used it in the 15th and 16th centuries to compose his oeuvre in Assamese and Brajavali the language of the Bhakti poems (Borgeets) and Dramas (Ankiya naat).
A coin with Assamese script from Ahom dynastyAhom king Chakradwaj Singha, (1663-1670 AD) was the first ruler who started issuing assamese coins for his kingdom (see figure for a sample coin). Similar script with minor differences are used to write Bengali (Bengali script), Manipuri and Sylheti language.