Last week, Justice Karnan ordered that non-bailable warrants be issued against the judges. A day later, the medical experts turned up at his doorstep. The judge claimed he had a "stable mind", and then contended that the team cannot conduct an evaluation "without the presence of a guardian".
The face-off between 61-year-old Justice Karnan and the Supreme Court started earlier this year after he named 20 "corrupt judges" of the country and wrote to Prime Minister Narendra Modi demanding an investigation.
As the Supreme Court transferred him from Madras High Court to Kolkata, Justice Karnan hit back, saying he was being victimised as he was a Dalit.
After the top court accused him of contempt, Justice Karnan filed a defamation case against the judges. After one appearance in the court, he demanded that the judges appear before him.
The Supreme Court responded saying it doubts the mental fitness of the judge to defend himself and ordered a psychiatric evaluation. It also asked the courts and tribunals across the country to ignore any order passed by Justice Karnan, who is scheduled to retire within a month.