Boxer L Devendro Singh won a gold at the Bocskai Invitation Tournament as India finished with four medals in the event held in Debrecen, Hungary.Indians won a gold, one silver and two bronze medals in the competition which concluded on Saturday.Devendro overcame a Kazakh opponent 3-0 to clinch the gold while Manoj Kumar lost out in a close final bout and had to settle for a silver medal.