A bench of justices Ranjana Prakash Desai and N V Ramana also sought responses from Haryana government, Haryana Urban Development Authority (HUDA) and the resident's association on whose plea the competition watchdog had imposed the penalty on the company.
It posted the case for further hearing on August 7.
The bench passed the order on an appeal filed by DLF challenging Competition Appellate Tribunal's order passed on May 19 upholding the penalty of Rs 630 crore imposed by the CCI.
It was in May 2010 that the buyer's association had complained against DLF.