The FIR stated the filmmakers hurt the sentiments of the Vanniyar community.
Along with the supplementary charge-sheet, a list of 102 new witnesses has been submitted in court.
Kappan was arrested along with three others in Uttar Pradesh in October 2020 while on his way to Hathras to report on the gang-rape.
It was an evidence tampering case dating back to 1990 for a period of one month.
The court suggested that the petitioner be kept somewhere safe until she delivers the child who can subsequently be given up for adoption.
The hearing was adjourned as Binoy's lawyer was unable to appear in court.
A Division Bench of the High Court on Saturday refused to consider a mutual application filed by Binoy and the woman seeking to terminate the court proceedings.
The prosecution is now planning to approach the High Court.
While passing the order, the bench said that the high court does not enjoy special powers that the Supreme Court has under Article 142 of the constitution.
The letter, signed by 12 former judges including former Supreme Court Judges, urged the Court to stop the "deteriorating law and order situation" in the state.