Saibal Sen, TNN, Apr 5, 2011, 03.16am IST KOLKATA: Illegal chit funds, a scourge in West Bengal, are back in a sneaky new disguise. Multi-level marketing firms are now luring unsuspecting depositors with promises of mammoth returns in the form of “products”. The booty, according to central and state authorities, runs into crores. What’s worse, […]