NEW DELHI: A man with 17 criminal cases against him was injured in an exchange of fire with police near Moolchand Metro station in southeast Delhi after he allegedly opened fire at a police team that had laid a trap to arrest him, an officer said on Wednesday.The accused, identified as Sonu, sustained a bullet injury in his leg during the encounter and was admitted to a hospital for treatment, according to news agency PTI. Police said they had received specific information about his movement and laid a trap in a lane near the metro station.When Sonu arrived on a motorcycle, the police team signalled him to stop. “Instead of surrendering, Sonu allegedly opened fire at police personnel, prompting the team to retaliate. During the exchange of fire, he was shot in the leg and overpowered,” a police source said.Police said Sonu is a bad character of Govindpuri police station and is involved in 17 criminal cases. Further investigation is underway.