Police today questioned two friends of the Uber cab driver, accused of raping a 27-year-old executive on Friday night.
However, they did not find any criminal record of the two and did not find any culpability on the duo in the case.
Meanwhile, police personnel took the accused to Mathura today to recover the smartphone which had the Uber App used during the crime.
Police has already recovered two of the three phones used by Yadav.
"The phone is an important evidence for us. It will prove that he works for Uber which will help us prove the culpability of the cab service," said a senior police official.
The duo, identified as Gaurav and Kamal, are friends of 32-year-old Shiv Kumar Yadav, who used to drive Swift Dzire cab at times.
"One of the phones used by Yadav was on Gaurav's name. We had first reached him during preliminary investigation and it was he who had put us on Yadav's trail," a senior police officer associated with the probe said.
"We questioned the two to gather more facts about Yadav. Swift Dzire belonged to the accused and Gaurav and Kamal also used to drive the car at times. However, these two (persons) were not registered with Uber," he said.
Yadav, who was driving an Uber cab, had allegedly raped a 27-year-old financial executive, who works for a multinational company in Gurgaon, on Friday night when she was headed back home in north Delhi's Inderlok area.
He was later arrested from Mathura and is under three-day police custody.
