One person was today injured after a crude bomb exploded near Dum Dum Junction in North 24 Parganas District, Railway Police officials said.
The bomb went off when Basudeb Biswas (28), a rag picker, tried to open a metallic container which he found near a rail track between Dum Dum Cantonment and Dum Dum Junction stations, Superintendent of Railway Police (SRP), Asesh Biswas said.
A bomb disposal squad from the Sealdah GRP rushed to the spot and recovered about 29 crude bombs, he said.
The rag picker, who sustained splinter injuries on his right arm, was admitted to RG Kar Medical College and Hospital in Kolkata, the SRP said, adding, further investigation into the incident is underway.
On Sunday, police had recovered a dead shell from an under-construction tunnel of the East-West Metro project near Kadapara area of the city.