Bitti Mohanty the absconding son of former Odisha DGP BB Mohanty, was arrested by the Kerala Police on Saturday from Kannur in north Kerala.
He was sentenced to seven years imprisonment for raping a 26-year-old German national in Alwar, Rajasthan in 2006.
According to police sources, Bitti was working in a public sector bank in the district impersonating as a recruit from Andhra Pradesh.
Police were tipped off about the presence of Bitti, after an anonymous letter was received by the bank branch authorities expressing suspicion that the man claiming to be from Andhra Pradesh could be Bitti.
What exposed Bitti was that his photo was among the pictures of accused in various sex crimes shown by television channels and floated on the Internet in the wake of the Delhi gang rape incident, the sources said.
Bitti was convicted for raping a German woman at Alwar in Rajasthan in 2006 and had been absconding after his release on parole the same year.
Kerala Police has intimated Rajasthan Police of the matter.
A team of Rajasthan Police is expected to arrive in Kannur this afternoon to confirm the identity of the absconder, after which the arrest would be recorded, sources said.
Former DGP BB Mohanty was suspended for allegedly helping his son jump parole, only to be reinstated by the Odisha Government in May 2009. A year later, he retired with all benefits, maintaining that his escaped son might be dead.
(With inputs from agencies)