The actor and nine other accused were present in the additional special sessions court in Ernakulam when the charges were framed against them.
All of them have denied the charges.
On Saturday, the Court had dismissed a plea filed by Dileep, seeking to exclude him from the list of accused.
The Court had admitted the prosecution argument that there is prima facie evidence against him in the crime and dismissed the plea of the actor, who is eighth accused in the case.
The court had also not allowed a plea by the actor to grant him 10 days time to file the appeal in a higher court in the light of the Supreme Court order in November 2019 that the trial should be completed in six months.
The court is hearing the case in-camera.
On December 19, Dileep, along with his lawyers and a technical expert, had examined the contents of the electronic records at the closed room of the court.
Earlier, the Supreme Court had directed that the actor be allowed to inspect the records to enable him to present an effective defence during the trial.
In February 2017, the actress was allegedly abducted and molested by the accused.
Seven people, including the key accused ‘Pulsar’ Suni were arrested in connection with the actress’ abduction case.
There are 10 accused in the case.
The entire act had allegedly taken place in a moving vehicle, which was filmed by the accused to blackmail her.
Dileep was subsequently arrested and arrayed as an accused in connection with offences under provisions of the Indian Penal Code and IT Act.
The top court had directed that the trial in case be concluded expeditiously, preferably within six months from the date of the judgement.
A woman judge is hearing the case.
In February 2019, the High Court, while considering a plea seeking to transfer the case to a Sessions Court headed by a woman judge to conduct the trial, had ordered the CBI special court Judge-III Ernakulam Honey M Varghese to complete the trial expeditiously.