The Talwars have been attending to patients since November 2013, when they were put behind bars.
The dentist couple had helped revive the near "defunct" dental department at the prison hospital, a jail official said.
Prison officials said they had not received a copy of the High Court order and would initiate the release procedure after they get the copy.
The suspicion initially fell on 45-year-old Hemraj, who at the time was missing. But his body was recovered from the terrace of the house a day later.