Arvind Kejriwal and Prashant Bhushan today made sensational allegations against businessman and Sonia Gandhi’s son in law Robert Vadra. They've alleged that DLF sold land and properties at cheap rates to Mr Vadra and gave huge unsecured loans to his companies. In return, they allege, DLF got favours by state Congress governments. It is an allegation that the Congress has strongly denied. The BJP has, meanwhile, demanded a probe.