A suspect in the blast incident outside a temple in Amritsar was killed in an exchange of fire with police, a top officer said on Monday.
Another suspect managed to flee, he said, adding that efforts were on to nab him.
A blast had occurred outside the Thakur Dwara Temple on March 15 when a person hurled an explosive device towards it, damaging a portion of its wall and shattering window panes.
Police said the suspect, who was killed in the incident, was identified as Gursidak Singh, a resident of Bal village, while the other one was Vishal, a resident of Rajasansi.
Sharing details, Amritsar Police Commissioner Gurpreet Singh Bhullar said the suspects, who were on a motorcycle, were asked to stop by a police team but they opened fire at the personnel.
Head constable Gurpreet Singh suffered a bullet injury in his left arm while one bullet hit the turban of Inspector Amolak Singh, said Bhullar. He said the accused fired five rounds at the police team which retaliated in self-defence.