Justice Mizanur Rahman Bhuiyan has given a reply to the Supreme Judicial Council's notice, in which he was asked to explain the allegation of his misconduct.
Mizanur, a senior High Court judge, himself submitted a four-page reply to the council members on Thursday, Supreme Court sources said.
Asked about the council's proceedings, SC Registrar AKM Shamsul Islam said he was not aware of the matter.
The allegations of misconduct came after Mizanur distributed a report, published in the daily Inqilab on February 17, among the judges of the High Court and the Supreme Court.
The report was on the alleged blog posts of Shahbagh movement activist Ahmed Rajib Haidar and it termed him "an atheist".
Rajib was brutally murdered near his Palash Nagar residence in the capital's Pallabi on February 15.
Constituted by the chief justice, the Supreme Judicial Council on February 28 issued a notice asking Mizanur to explain to it about the allegation raised against him.
On February 25, President Zillur Rahman ordered Chief Justice Md Muzammel Hossain to constitute the council to investigate the allegation.
Comprising the chief justice and two other senior SC judges, the Supreme Judicial Council investigates allegations of misconduct of any judge and makes necessary recommendations to the president.