The Bengali–Assamese script, also known as Eastern Nagari script, is the fifth most widely used writing system in the world. It is the basis of the Bengali and Assamese alphabets, as well as the alphabets of Bishnupriya Manipuri, Kokborok (Tripuri), Meitei (Manipuri), Chakma, Santali, Kamtapuri etc. Other languages, such as Angika, Bodo, Karbi, Maithili and Mising were once written in this script. Modern Sylheti is often written using this script as well, as is Sanskrit in areas where the script predominates. The Tirhuta script of Maithili is very closely related, though it behaves slightly differently.