Following Sudhakaran's statement that he would file a defamation case against Govindan, the CPI(M) state secretary told reporters in Delhi that his statement was based on a news report and that he would face it legally.
The KPCC chief also said that he would move a plea seeking quashing of the cheating case against him.
The Crime Branch had on June 23 had questioned the KPCC president on the basis of a statement by the complainants, who lost their money in the cheating case, claiming they had handed over money to Mavunkal in the presence of Sudhakaran.
Earlier, the agency had submitted an additional report before a court here, arraigning Sudhakaran as an accused in the case.
When the allegations cropped up against him two years ago, Sudhakaran denied them.
The issue had snowballed into a political controversy as images of Mavunkal, along with Sudhakaran, emerged. Sudhakaran had said he had gone to Mavunkal's residence for treatment, as the latter claimed to be a trained cosmetologist.
Mavunkal had allegedly made false representations about himself and his business to various people and collected money from them.
Cherthala native Mavunkal, who claims to be in possession of rare and historic antiques, was arrested by the Crime Branch in September 2021.