Village Koili Kalan of Chauparan, Hazaribagh comes under state JHARKHAND. This is situated 42 kms far from city JHUMRI TILAIYA. Total Population of Village is 1651 and household count is 280. For Education Village has facility of Govt Primary, school.For higher education village also has .Village also has nearby education facility of .For health care village also has .Nearest water sources are Hand Pump, Tank/Pond/Lake. Waste water flows by open Drainage, no Drainage on the streets.