31,900,000 in India (2000). 40% monolingual. Population total all countries: 34,700,000.
Spoken in : Bihar, Muzaffarpur on west, past Kosi east to west Purnia District, to Munger, Bhagalpur districts south, and Himalayan foothills north; Delhi, Calcutta, Mumbai. Many settled abroad. Cultural and linguistic centers are Madhubani and Darbhanga towns. Janakpur also important culturally and religiously. Also in Nepal.