Enforcement Directorate has filed a money laundering case against Karti Chidambaram, son of former Union Minister P Chidambaram. T<br/><br/>he case has been registered under sections of Prevention of Money Laundering Act in connection with alleged irregularities in the grant of FIPB approval to a company to get FDI. <br/><br/>The action has been taken on the basis of a FIR filed by the CBI against Karti Chidambaram over the allegation that he exercised his influence over Foreign Investment Promotion Board officials to grant foreign investment clearance to a firm, INX Media, in 2007. <br/><br/>Two days back, CBI had carried out searches at 14 locations in Chennai, Mumbai, Delhi and Gurugram related to Karti Chidambaram.