Village Koili Semra of Rupauli, Purnia comes under state BIHAR. This is situated 50 kms far from city PURNIA. Total Population of Village is 22208 and household count is 4351. For Education Village has facility of Govt Primary, Govt Middle, school.For higher education village also has .Village also has nearby education facility of .For health care village also has Primary Heallth Sub Centre. Nearest water sources are Uncovered Well, Hand Pump, Tube Wells/Borehole, River/Canal. Waste water flows by open Drainage.