Its ok but tell about those who are rejected for bps17 by pesco due to not having ist div .so if they cant apply to bps 17 to which posts they may apply?and they should clearly notify nts not to consider them for test and then why it is written in aid. Cleary that only eligible candidates can appear for written/interview . If they fulfill your merit criterion to higher posts they cant apply to lower you say its over qualification so where then they can go though they have fulfilled your nts n interview %age criterion