The apex court will hear the government plea on Monday.
A bench of justices K S Radhakrishnan and J S Khehar is to examine the Centre's appeal, which has contended that the high court had taken an erroneous view in striking down the provision despite the decision to provide the quota was done after an extensive survey.
The high court on May 28 had held that the Centre acted in a "casual manner" in granting the 4.5 percent sub-quota to minorities, carving it out of 27 percent OBC reservation.
It had said the Office Memorandum (OM) creating the sub-quota was based on religious grounds and not on any other intelligible consideration.
The December 22, 2011 OM for a 4.5 percent subquota for socially and educationally backward classes of citizens belonging to minority communities out of the 27 percent reservation for OBCs in central educational institutions and jobs was announced by the Centre ahead of the Assembly elections in five states including Uttar Pradesh and Punjab.
The very use of the words "belonging to minorities" or "for minorities" indicates that the sub-quota has been carved out only on religious lines and not on any other intelligible basis, the bench observed while setting aside the sub-quota. MORE