An undertrial was killed and a constable critically wounded when a group of undertrials in a bid to escape exploded bombs in the civil court campus here, forcing policemen to open fire at them.
Police said the incident occurred when the undertrials were boarding a police vehicle to return to prison after they were produced in the court.
As they were about to board the vehicle, a group of undertrials, including Danny Yadav, Amit Mandal and Sujit Yadav, exploded bombs.
The policemen retaliated and fired at them.
While Danny Yadav, an undertrial, was killed on the spot, Mohammed Khairuddin, a constable, was critically injured in the explosion.
Another undertrial, Sujit Yadav, managed to escape.
Raids were on to apprehend him, the police said.
The bombs were supplied to the undertrials allegedly by fellow undertrials at the court lock-up, they said.