In a filing to the BSE, DLF said it has "come to know" about the commission being appointed by the Haryana government but is "not aware of its terms".
DLF said: "All facts pertaining to the case involving DLF are already in public domain and it is well known that this was a very small transaction of approximately Rs 50 crore. When called upon, we will fully cooperate with the Hon'ble Commission."
BJP had made land deals under the previous Congress regime in Haryana a major poll issue during the last year's election alleging that land rules were relaxed to favour a few including Vadra, the son-in-law of Congress President Sonia Gandhi.
The Commission would also probe subsequent transfer or disposal of the lands, allegations of private enrichment, ineligibility of beneficiaries under the rules, and other connected matters, bringing Vadra land deal under the scanner.
Notably, "undue favours" to builders, including Vadra's Skylight Hospitality, by the Haryana government during the Congress regime had come under attack from the Comptroller and Auditor General of India (CAG).
The CAG report, tabled in the Haryana Assembly in March, had alleged that because of Vadra, rules were also relaxed for other developers and builders, including DLF Universal Ltd.