4,650 all Mewahang (2011 census). Few monolinguals. Ethnic population: 570 (2011 census).
Kosi zone: Sankhuwasabha district, upper Arun valley, Bala, Sisuwa, Tamku, and Yamdang. Sankhuwasabha VDC, Bala village (Bala dialect); Sishuwakhola VDC (Bumdemba dialect).
6b (Threatened). Language of recognized indigenous nationality: Rai.
Bala (Balali), Bumdemba. Structurally different from Eastern Mewahang [emg].
SOV; postpositions; 24 consonant and 14 vowel phonemes.
The language is nearly extinct in the village of Tamku, the largest settlement in the area, where many ex-Gurkha pensioners live. Home; mixed use: Friends, religion, work. Young adults and older. Some use among children and adolescents. Positive attitudes. Also use Kulung [kle], Lohorung [lbr], Nepali [npi].
Devanagari script [Deva].
Traditional religion, Hindu.