The undertrial, Rahul Nanda, is wanted at several police stations in cases of attempt to murder, kidnapping and a dozen other similar crimes.
Yesterday, he complained of a stomach-ache following which he was taken to the SMS hospital here. At the hospital, the accused allegedly convinced the jail guards to take him to his home in Transport Nagar of the city.
Nanda managed to dodge them while they were being offered tea, the police said.
"We will investigate the involvement of jail guards in Nanda's escape. The matter is under investigation," Additional DCP (East) Hanuman Prasad said.