Dehri On Sone is a city and a municipality in Rohtas district in the state of Bihar, India. It is a Sub Division under Patna Division and Headquarter of The Bihar Military Police (BMP-2) as well as The Police headquarters of the Sahabad Range. This city is also known as an industrial Town of the Rohtas district[citation needed]. Dehri is Well connected by road and rail and has own airbase.