Assamese is an Eastern Indo-Aryan language spoken mainly in the Indian state of Assam, where it is an official language. It is also spoken in parts of Arunachal Pradesh and other northeast Indian states. Nagamese, an Assamese-based Creole language is widely used in Nagaland and parts of Assam. Nefamese is an Assamese-based pidgin used in Arunachal Pradesh. Small pockets of Assamese speakers can be found in Bangladesh. In the past, it was the court language of the Ahom kingdom from the 17th century.