An undertrial prisoner from Nizambad district escaped from Osmania General Hospital (OGH) on Sunday afternoon.
Police said Ramachandra Chari, 35, went to washroom to attend nature's call and escaped by jumping from the window.
He was arrested in connection with a theft case that was reported at Domakunta police station in Nizambad district a few weeks ago and later sent to the prison in the district.
On Wednesday, he complained of some health problem following which jail authorities shifted him to OGH.
A manhunt is on to trace him.