The Enforcement Directorate on Friday carried out searches at the office of Congress President Rahul Gandhi's brother-in-law Robert Vadra in an ongoing probe into the 2012 land deal in Kolayat in Rajasthan, official sources said.
The official said the agency was also searching the premises of Vadra's close associates in the national capital region and Bengaluru.
The agency had issued the latest summons to Vadra as he did not personally appear on November 30 and instead sent his legal representative.
The ED has been probing an alleged scam in the purchase of land in Kolayat area in Bikaner district.
The agency registered a criminal case under the Money Laundering Act in 2015, taking cognizance of the case filed by the Rajasthan Police.
(With inputs from agencies.)