A subgroup of the Indo-Aryan languages that is usually included in the Eastern branch of Indo-Aryan
Bihari languages are a group of the Indo-Aryan languages. The Bihari languages are mainly spoken in the Indian states of Bihar, Jharkhand, and Uttar Pradesh, and also in Nepal. The most widely spoken languages of the Bihari group are Bhojpuri, Magahi and Maithili. Wikipedia