The sessions court has earlier directed Chandra and Goenka to join the investigation.
"Evidence cannot be collected if the investigating agency is not given given an opportunity to confront the version of all the four accused with each other as there are allegations of criminal conspiracy," the court said."(The) investigating agency cannot be deprived of an opportunity to collect evidence," it added, while sending Zee News head Sudhir Chaudhary and Zee Business Editor Samir Ahluwalia for custodial interrogation till Monday.