The incident took place yesterday when the victim identified as Sachin, a head constable with Delhi Police along with his friend Deepak boarded a Cluster bus at north Delhi's Netaji Subhash Place around 9:30 AM yesterday to travel to Kingsway Camp.
"As the bus reached Model Town, Sachin felt his phone slipping out of his pocket. He immediately turned back and saw a youth trying to switch off his mobile. Sachin snatched his phone from the youth. The youth then suddenly pulled out a knife to wrest back the phone," said a senior police official.
A PCR call was made and Sachin and Deepak were taken to a hospital where they were administered first aid for their minor injuries. A case was registered at Model Town police station based on Sachin's statement but the assailants are yet to be identified.
Police believe that an organised gang is behind the attack which moves in groups to give cover to the thief and also provide him back up in case he is caught. Some local gangs involved in such robberies are being rounded up by the police in this connection.