Magadhi Prakrit
Nagpuri belongs to Bihari group of Indo-Aryan languages. There are different opinion among linguist about origin of Nagpuri language. Sir George Abraham Grierson had classified Nagpuri as dialect of Bhojpuri language in his Survey "Linguistic Survey of India". According to professor Keshri Kumar Singh, Nagpuri is descendant of Magadhi Prakrit in his book "Nagpuri bhasa ebam Sahitya". According to Dr. Sravan Kumar Goswami, Nagpuri had evolved from Ardhamagadhi Prakrit.