50,000 (2003). 20,000 Musasa and 30,000 Musasa Bantar. Ethnic population: 172,000.
Janakpur Zone, Sindhuli, Dolakha, Mahotari, and Dhanusa districts; Kosi Zone, Morang and Sunsari districts; Sagarmatha Zone, Siraha and Saptari districts.
Bantar. Reportedly similar to Kochila (Saptari) Tharu [thq].
Speakers have high proficiency in Nepali [npi].