Real estate giant DLF has dismissed all allegations that it gifted Robert Vadra a Rs. 65 crore interest-free loan and sweetheart deals on a series of apartments in Gurgaon. Mr Vadra is the son-in-law of Congress President Sonia Gandhi. Activists-turned-politicians Arvind Kejriwal and Prashant Bhushan, said they should be sued for defamation if their charges are proved incorrect. Yesterday, they accused Mr Vadra and DLF of an illicit and mutually-beneficial relationship that rested on Mr Vadra's political connections.