The Haryana Police said on Tuesday they have sought permission from the state government to further probe the corruption case registered against Congress President Rahul Gandhi's brother-in-law Robert Vadra, former Chief Minister Bhupinder Singh Hooda and realtors including DLF.

The police on Saturday booked Vadra, Hooda, DLF and Gurugram-based Onkareshwar properties for their alleged involvement in a land scam worth Rs 5,000 crore in Gurugram in 2008. The case was registered on the complaint of Surender Sharma, a resident of Rathiwas village near Tauru, alleging that a company belonging to Vadra's Skylight Hospitality cheated people and the state.