According to a portal, the duo has been arrested on charges of criminal conspiracy and on the basis of new evidences.
Reportedly, they were taken into custody on Monday morning and were being interrogated at an undisclosed location by the investigation team.
The portal further reports that the Kerala Chief Minister’s office has also confirmed their arrest.
The Malayalam actress was attacked and allegedly assaulted inside a moving vehicle in February this year.
Dileep had earlier maintained that he is innocent in the case, and held absolutely no relation to prime accused Pulsar Suni.
Though the actor had long rumoured to be involved in the criminal act, his name came to the forefront after a letter from Sunil's aide written to Dileep from jail accusing him of masterminding the entire turn of events was leaked.
The actor and his director friend Nadhirshah had launched an official police complaint of blackmail, after audio clips of a phone call purportedly made by Suni’s aide to Dileep’s manager asking for ransom or have Dileep embroiled in the scandal had been released.
The duo was then interrogated for a mind-numbing thirteen hours.
“We gave detailed statements on my complaint to the police and I am happy at the way the police are going forward in the case,” Dileep had told the reporters.