The major languages spoken in Bihar are Hindi, Bhojpuri, and Maithili. Hindi is the official language of India and is spoken by the majority of the population in Bihar. Bhojpuri is a dialect of Hindi that is spoken in the eastern part of the state. Maithili is a separate language that is spoken in the northern part of the state.
Bengali is the official language of West Bengal and is spoken by a significant minority of the population in Bihar. Odia is the official language of Odisha and is spoken by a small minority of the population in Bihar. Assamese is the official language of Assam and is spoken by a small minority of the population in Bihar.
Tamil, Telugu, Kannada, and Marathi are the four major languages spoken in the southern states of India. They are not spoken in Bihar. Gujarati and Punjabi are the two major languages spoken in the northwestern states of India. They are also not spoken in Bihar.
In conclusion, the major languages spoken in Bihar are Hindi, Bhojpuri, and Maithili.