The Kerala Police on Saturday quizzed rape convict Bitti Mohanty's father and senior IPS officer BB Mohanty in Odisha's Cuttack district.
The police quizzed BB Mohanty in connection to the investigation against his son Bitti Mohanty.
BB Mohanty had earlier said the arrested man from Kerala is not his son.
Meanwhile, the police have confirmed that the arrested Raghav Rajan from Kerala is the fugitive rape convict Bitti Mohanty after matching the finger prints and verifying records in Rajasthan.
The Kerala Police team that took Bitti Mohanty to Rajasthan, where he had committed the crime at Alwar, matched his finger prints in Jaipur jail and confirmed his identity as Bitti Mohanty, media reports said.
Jaipur police commissioner BL Soni confirmed the matching of finger prints.
Bitti Mohanty will be taken back to Kerala.
The Kerala Police on Friday said Bitti Mohanty had forged his B.Tech certificate from Kalinga Institute of Industrial Technology (KIIT) in order to take the identity of Raghav Ranjan.
The man suspected to be Bitti Mohanty, who was on the run for nearly seven years after his conviction for raping a German tourist, was arrested in Kerala´s Kannur district on Feb 8.
The Kerala Police had earlier revealed that it was an anonymous note sent to the State Bank of Travencore that aided them to seek Bitti Mohanty, working there impersonating as another person.
Bitti Mohanty was convicted of raping a German tourist in 2006 by a fast track court in Alwar in Rajasthan. He later jumped parole and has been absconding since then.
It was alleged that his father helped him escape but the senior cop suspended for the same was reinstated in his job later and he retired from police service in 2012.