The Magahi language also known as Magadhi is a language spoken in India. The ancestor of Magadhi, from which its name derives, Magadhi Prakrit, is believed to be the language spoken by the Buddha, and the language of the ancient kingdom of Magadha. Magadhi is closely related to Bhojpuri and Maithili and these languages are sometimes referred to as a single language, Bihari. These languages, together with several other related languages, are known as the Bihari languages, which form a sub-group of the Eastern Zone group of Indo-Aryan languages. Magadhi has approximately 13 million speakers. It was once mistakenly thought to be a dialect of Hindi, but has been more recently shown to be descendant of and very similar along with Bengali, Assamese, and Oriya. It has a very rich and old tradition of folk songs and stories. It is spoken in 8 districts in Bihar, 3 in Jharkhand and has some speakers in Malda, West Bengal. Though the number of speakers in Magadhi is large, it has not been constitutionally recognized in India. Even in Bihar, Hindi is the language used for educational and official matters (although Maithili, a related language also spoken widely in Bihar, is an official language under the Eighth Schedule to the Constitution of India). Magahi was legally absorbed under the subordinate label of Hindi in the 1961 Census.
Magadhi is spoken in the area which formed the core of the erstwhile ancient kingdom of Magadha - the modern districts of Patna, Nalanda, Gaya, Jehanabad, Aurangabad, Sheikhpura and Nawada. The total geographical area covered by Magahi is much larger today.[4] It is also spoken in some areas of Hazaribagh, Giridih, Palamau, Munger and Bhagalpur, with some speakers in the Malda District of West Bengal. So Many speakers in Mumbai & Delhi