Vivek Doval, son of National Security Advisor Ajit Doval, has filed a criminal complaint of defamation against senior Congress leader Jairam Ramesh and the Caravan magazine for their allegation that he had set up an illegal hedge fund in the Cayman Islands. Doval Jr is suing Ramesh and the publication for having “deliberately maligned and defamed” him 'seemingly to settle scores with his father'.