A 25-year-old man was arrested while trying to sell a countrymade revolver near St John’s Road here on Thursday.The Commercial Street police, who arrested JC Nagar resident Mohammed Salman Khan (pictured), said he was only a seller of the illegal firearm. The revolver was manufactured in a North Indian state.Khan was reportedly showing the firearm to passersby near the RBANMS ground, in a bid to sell it off. However, a passerby, who was also offered the revolver, informed the po…