The Enforcement Directorate on Saturday quizzed Sonia Gandhi’s son-in-law Robert Vadra for the third time in connection with an alleged money-laundering case.

Sources said the investigating officer required Vadra to answer more questions in connection with the case — purchase of assets abroad — and that was why he had been asked to depose after two earlier sessions of questioning on February 6 and 7.

Vadra has been quizzed for nearly 24 hours during his deposition over the three days.

“Vadra was confronted with documents that the agency had obtained or seized as part of its probe in the case. He also shared documents with the investigating officer of the case and has assured some more will be provided as and when he gets them,” an ED official said.

The ED case against Vadra relates to allegations of money-laundering in the purchase of a London-based property, located at 12 Bryanston Square, which he allegedly owns.

The agency had earlier told a Delhi court that it had received information about various new properties in London that belong to Vadra. These include two houses and six flats.

Vadra has denied the allegations and claims he is being “hounded and harassed” for political reasons.

He is likely to depose before the agency again on February 12 in Jaipur in another money-laundering case related to a land scam in Bikaner.

Rajasthan High Court has directed him to cooperate with the agency in the case.