RBI has tightened its norms for non-banking financial companies, NBFCs by requiring them to have a much stronger capital base, failing which they would lose their registration. This comes in the wake of public investors increasingly being defrauded in the name of non-banking financial services. The NBFCs would be subjected to a stronger set of rules and regulations if they raise public deposits. RBI announced a new set of norms yesterday that also mandate a huge eight-fold increase in the minimum 'net owned fund' requirement from 25 lakh rupees to 2 crore rupees by 2017 in a phased manner.