Sebi was asked to submit details with regard to both the IPO prospectus filed by DLF before its public offer in 2007.
Earlier in October, Sebi had barred DLF and its top executives from accessing the capital markets or dealing in securities for three years for alleged disclosure-related lapses in the final IPO papers filed by the company.
The order was challenged before SAT in the same month.
Sinha had alleged that one of DLF subsidiaries - Sudipti Estates - and certain other persons duped him of Rs 34 crore in a land deal.
SAT will be hearing the case on a daily basis till Wednesday.