New Delhi, July 18 -- The Enforcement Directorate (ED) has filed a charge sheet against Congress leader Sonia Gandhi's son-in-law Robert Vadra, the husb- and of Wayanad MP Priyanka Gandhi Vadra, in connection with its money laundering probe in a 3.53-acre land deal in Gurugram's Shiko- hpur in 2008, people familiar with the development said on Thursday. This is the first ever charge sheet against Vadra by the agency. Officials said Vadra has been charged under the Prevention of Money Laundering Act along with a few others in the charge sheet. He was questioned for three days in the case in April this year. It is alleged that Vadra's two firms had Rs.1 lakh each in their bank accounts when they purchased the 3.53- acre land worth Rs.7.5 crore in 2008. P4...