Kolkata: Three persons have been grievously injured in a blast at an illegal crude bomb manufacturing factory at Boral in Garia in south Kolkata on Wednesday.
Local residents said that they heard two consecutive bangs from the pucca house of Ismail soon after dusk. They rushed in and found Suman Naru, Sirazul Fakir and Salam Mistry lying on the floor with grievous injuries all over their body.
The first one is an outsider, the rest two are occupants of the house. The trio has been admitted to the MR Bangur Hospital at Tollygunge.
Sonarpur police said that preliminary probe suggests the blast took place while bombs were being manufactured in the house. Suman was alone when the first bomb went off; the second one exploded after Sirazul and Salam rushed into the room hearing the blast.