There is no provision for creamy layer in reservation for Scheduled Castes (SCs) and Scheduled Tribes (STs) in the Constitution as envisaged by BR Ambedkar, the Centre said today days after the Supreme Court order on sub quotas. Briefing reporters after the cabinet meet, Information Minister Ashwini Vaishnaw said there was a detailed discussion at the meeting on a recent Supreme Court judgment that made certain suggestions on the reservation for the SCs and STs.