Ban on alcohol in Bihar. This study was conducted in Jawaharlal Nehru Medical College and Hospital, Bhagalpur, Bihar. This article highlights that drunken driving is one of the major cause of road accidents. Govt of bihar enforced a complete ban on liquor from  5th April 2016. Approximately 3 lakh population in the state were identified as habitual drinkers. Drunken driving is identified as one of the major contributors to road traffic accidents and death worldwide and resulting in  undefined economic and social loss.  A Leading cause for this malady is alcohol consumption  and subsequent misadventure on the road which not only harms him but also the poor ones on the road. In our study  from 6th may 2016 to 5th dec 2016 total number of road traffic accidents were gradually decreasing month by month after complete prohibition of liquor in bihar as compared to before prohibition of liquor. It clearly indicates that drunken driving is a major human factor of road traffic accidents.