With crude-bomb attacks becoming a recurrent phenomenon in West Bengal, especially ahead of elections, an Aajtak investigation has unearthed factories handcrafting lethal devices for supplies across the state for a price as low as Rs 130 a piece. Aajtak found men constructing, storing, and supplying homemade bombs packed with shrapnel like nails, fins, nuts, and bolts across several districts. Watch the exclusive report for more information.