When the plea came up for hearing before Justice P Ubaid, police submitted that they had so far not arraigned Nadirshah as an accused.
The filmmaker was recently questioned by investigators in connection with the case.
Disposing of the petition, the judge said if Nadirshah was required for further interrogation, he should be given notice.
The petitioner had alleged that he was facing threat and pressure from the investigation team to give false statements for the purpose of manipulating evidence.
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Dileep, arrested on July 10 on the charge of conspiracy, was granted bail by the high court yesterday.
The actress, who has worked in Tamil and Telugu films, was abducted and allegedly molested inside her car for two hours by the accused, who had forced their way into the vehicle on February 17 night and later escaped in a busy area.
The police have claimed that the conspiracy to abduct and assault the actress and film the act was hatched by Dileep.