“Chisoi is a script used for writing Kurmali (Devanagari:कु ड़मालि, Bengali:কুড়ম ািল, Odia:କୁଡ଼ମାଲି)(ISO 639- :kyw)[ ], is an Indo-Aryan language of 556,089 people (census 2011) primarily spoken in Saraikela Kharswan District, East Singhbhum District, West Singhbhum District, Ranchi District of Jharkhand; Mayurbhanj District, Kendujhar District, Jajpur District and Sunargarh District of Odisha; Purulia District, Bankura District, Jhargram District and Paschim Medinipur District of West Bengal. It is also mother tongue of some people of Chhattisgarh, Assam and other parts of India even in Bangladesh and Nepal. Kurmali language is spoken by Kurmi people, mainly. It also spoken by many other people of Jungle Mahal area i.e, Bagal, Kamar, Kamhar,Tanti, Harhi, Muchi, Napit, Dhopa, Dhai, etc. It was recognized as an additional official language of Jharkhand and West Bengal.” - Mandal, Biswajit, Proposal to Encode Chisoi in the Universal Character Set, 2021
This script was relatively recently created and thus does not have a lot of scholarly sources available in English on this. Furthermore, this has not yet been added by the Unicode Consortium and does not have an ISO 15924 number. We will update this article as developments occur.