Village Semma of Chetam (Peer Yapu), Upper Subansiri comes under state Arunachal Pradesh. This is situated 48 kms far from city DAPORIJO. Total Population of Village is 107 and household count is 14. For Education Village has facility of school.For higher education village also has .Village also has nearby education facility of .For health care village also has .Nearest water sources are Spring. Waste water flows by no Drainage on the streets.