Aarushi Hemraj murder
The Talwars have been attending to patients since November 2013, when they were put behind bars.
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.