The seizure on Monday of fake Indian currency notes (FICN) with a street value of Rs 10 crore—the biggest in recent times—from a location near Kolkata has the police stumped with the variety of the counterfeit notes.br br According to them, while the FICN cache’s seizure was a stroke of luck, what has left the Kolkata Police’s Special Task Force (STF) dazed is that Chandrashekhar Jaiswal, the man behind the fake notes, has been running a counterfeit currency factory for more than a year using his scrap iron business as a front.