Vadra is expected to be questioned again on either Friday or Saturday.
Enforcement Directorate alleged that he was not cooperating and sought his custodial interrogation.
Wouldn't have used 182 pages for report if there were no irregularities, said Justice Dhingra.
Vadra, on Facebook termed as "witch hunt" the Enforcement Directorate's action of attaching assets of a firm linked to him, and claimed that it showed "complete misuse of assertion of power".
Vadra was directed by a Delhi court to cooperate with the investigation being carried out by the central probe agency after he knocked on its door seeking anticipatory bail in this case.
Amid the Bharatiya Janata Party governments at the Centre and in Haryana beginning to turn the heat on him, businessman Robert Vadra, also the son-in-law of Congress President Sonia Gandhi, recently ensured his companies filed their pending balance sheets.