Karti Chidambaram, son of senior Congress leader P Chidambaram, cannot be arrested by the Enforcement Directorate if he gets bail by a trial court today in the INX media money laundering case by the Central Bureau of Investigation, the Delhi High Court has said. Providing interim relief to Mr Chidambaram, the High Court said the Enforcement Directorate or ED cannot arrest the 46-year-old businessman till March 20, the next hearing in the case.