The firing took place when two GRP constables of Narcotics Cell tried to check the bag of the suspected terrorist in the Jammu-bound Jhelum Express which arrived here from Pune around 3.30 am at platform no. 4 of the railway station, police said.
Sources said the suspected terrorist identified as Balbir Singh Bhootna immediately got down and hid himself under a compartment of the Jhelum Express and opened fire at the police.
Ludiana Senior Superintendent of Police (SSP) Sukhchain Singh said, "Bhootna was arrested after an exchange of fire which lasted around one hour."
The vendor was killed on the spot during the exchange of fire and the two injured head constables have been identified as Karanpal Singh and Naranjan Singh, GRP Superintendent of Police S J P Sharma said.