Bengali–Assamese script
The Bengali–Assamese script (also Eastern Nagari script) is the fifth most widely used writing system in the world. It is the basis of the Bengali alphabet, Assamese alphabet and Tirhuta (a mix of Devanagari and Eastern Nagari). It is the official script for three official languages, which are Assamese language, Bengali language and Meitei language (constitutionally termed as "Manipuri").