The High Court gave three week time to UPA government asking them to reply regarding corruption allegations against Vadra and his tainted deal with real estate company DLF.
The PIL was filed by social activist Nootan Thakur who sought direction from the court to probe allegations hurled by Arvind Kejriwal against the son-in-law of the Gandhi family.
In the petition, Thakur urged the court to ask Prime Minister Manmohan Singh's office to start an investigation on Vadra regarding Kejriwal's charges.
The RTI activist-turned-politician along with Supreme Court advocate Prashant Bhushan had accused Vadra of taking an unsecured loan of Rs 65 crore from DLF.
The anti-corruption crusader also alleged that Vadra's wealth had increased from just Rs 50 lakh to more than Rs 300 crore within a span of three years and also asserted that Vadra had received bribes from DLF.
The controversy over Vadra's alleged role in the scam was ignited when Finance Minister P Chidambaram rejected the demand to start a probe against Vadra saying no such move could be taken unless there was a specific allegation. He also said the government could not probe private deals without specific allegations or quid pro quo, said an agency report.