Hello,

University blacklisted means its not getting any accreditation from government or UGC or NAAC. But may be for lack of equipments or laboratory or education problem. So if blacklisted it's not permanent. The university fixed their problems and get permission for admission. Because no universities want to blacklisted themselves. If it's happen anyone those are already doing government job then it's okay. Because you are already pass-out.

All the best.