Three Pakistainai terrorists escaped while being taken to the G B Pant hospital on Saturday evening, Jan 2.
"We have announced a reward of Rs 50,000 each for providing information on the three Pakistanis. We have also released their pictures," a senior police official said.
Abdul Razzak, Mohammed Sadiq and Rafaqat Ali were arrested in connection with blasts near the Red Fort and were to be deported to Pakistan as they had completed their jail term.
After the escape, Delhi Police registered a fresh case against the trio for violating the restraint order under the Foreigners' Act, a senior police official said.
Home Ministry officials said an alert has been sounded in Delhi and adjoining areas to nab them.