The family had provided the income tax department with a fake address in this Bandra building

The mystery Mumbai family's claim that their net worth is Rs 2 lakh crore is just shady business, Income Tax (I-T) sleuths now suspect. The numbers just don't add up — their income doesn't match their claimed wealth, and officials suspect that either the family is lying or they are a front for other people's black money. The family had on December 4 come forward to declare the undisclosed wealth following the demonetisation drive.