The Haryana government on Thursday announced retired Delhi High Court judge, Justice S.N. Dhingra, would head a one-man commission to probe the grant of licences to Congress president Sonia Gandhi's son-in-law Robert Vadra's company and other firms for developing commercial properties in Gurgaon's Sector 83.An official spokesman said here that the commission would also probe their subsequent transfer or disposal, allegations of private enrichment, ineligibility of beneficiaries under the rules, and other connected matters."Issues concerning public importance related to the grant of licenses and alleged illegalities have come to the notice of the state government," the spokesman said.