The accused, Ravi Dhikka, who is in his twenties, was recently arrested following a tip-off from near the Rohini East Metro station here, they added.
Dhikka is wanted for the murder of Sonu Pehalwan and Rajeev, both said to be members of a rival gang. The duo was shot dead by the accused on June 25 while they were at a party, police said, adding that revenge was the motive behind the killing. Dhikka was absconding after the shooting.
During sustained interrogation, Dhikka confessed to his involvement in the killing of Pehalwan and Rajeev, police added.