Duryodhana was captured by Chitrasena, the king of Gandharvas, in the Dwaita Vana (Dwaita Forest). This incident occurred when Duryodhana, accompanied by the Kauravas, went to the Dwaita Forest and was defeated by the Gandharvas who were allies of the Pandavas. The Gandharvas took him captive, and he had to be rescued by the Pandavas.