Four persons were arrested for abducting and subsequently murdering Amit Kumar, an IAS aspirant from Aligarh, in southeast Delhi a week ago, police said on Sunday.
Police said the arrested have been identified as Satpal (21), Harish (23), Munesh Kumar (22) and Lalit Kumar (22) had robbed Amit, an MSc in Physics from the DS College in Aligarh when he was enroute his friend's residence in Badarpur on July 3.
"He boarded the Metro at Badarpur station and got off at Nehru Place station around 8.30pm where he made a call to his mother. It was then that the four accused approached him in a Santro car, which was later ascertained to be stolen, and offered Amit a lift," said Ajay Chaudhary, additional commissioner of police (southeast).
While in the car, police said, the accused robbed Amit of his mobile phone and his bag before they left him in an injured state at the Hindon Canal in east Delhi's New Ashok Nagar area.
According to police, teams were dispatched and Amit's call records checked. It was then that they ascertained that he was picked up from the Nehru Place Metro station.
"Through investigations, our team received information that the crime may have been committed by a gang of professional criminals. Around 2pm on July 9, the gang was apprehended while on their way to commit another crime in Sarai Kale Khan. They were in the same Santro car which they used while murdering Amit," Chaudhary said.
The gang drove around Delhi and Noida at night and targeted persons who were walking alone and appeared to be carrying money or other valuables, said police.