"We could not get any evidence against BB Mohanti. He has no role to play in impersonation and forgery cases against his son Biiti," said Kerala Police Team leader Josi Joesph.
The Kerala Police also said that Mr Mohanty, former Director General (Home Guard) of Odisha, identified the man arrested in Kannur on March 8 and suspected to be Bitti, to be his son.
"I have always upheld rule of law. I am cooperating with investigation and will do so in future," the former DGP told reporters.
On his statement to the Kerala Police, Mr Mohanti said "I have been asked not to disclose what transpired between me and the Kerala Police. This is creating a problem in court."
Sources said the team sought to know whether Mr Mohanti was aware about his son's stay at Kannur in Kerala.
Bitti Mohanty was convicted for raping a German national in Alwar in March 2006. He went absconding the same year while on parole. The Kerala police says Bitti Mohanty reinvented himself as Raghav Rajan, teaching at a school in Andhra Pradesh, completing an MBA in Kerala and taking up a job in a bank.
Police today flew the man thought to be Bitti Mohanty back to Kerala from Jaipur. He had been brought to Rajasthan for investigations two days ago. The Kerala Police had yesterday said his school and college certificates from Odisha had been forged to establish Raghav Rajan's identity.
After visiting the Kalinga Institute of Industrial Technology in Bhubaneswar, where Bitti Mohanty studied B.Tech, and Cuttack's Stewart School and Christ College, Kerala Police officer Jose Joseph had said: "The B.Tech certificate in the name of Raghav Rajan is forged. A certificate with the same number was issued in the name of Bitti Mohanty."