Carl Fischer, 46, of Riverside was arrested on charges of third-degree assault and breach of the peace. on Nov. 21.
At approximately 11:45 p.m. officers responded to Darien Social, 934 Post Road, in response to a report of an altercation, according to police.
Fischer had become irate with another patron and, while at the bar, threw a drink in his face and punched him, according to police. Police said the victim suffered a swollen left eye.
Fischer was taken into custody and later released on a $250 bond. He is scheduled to appear in court on Dec. 3.