No, it is not blacklisted. NIT Kurukshetra University is a well-known prestigious university. It is a place of learning that is merited with NAAC grade ‘A’ in 2009. It was for 5 years. 

Although it is no longer a NAAC rated university, if you search it online you would come across documents and reports specifying its authenticity as NAAC ‘A’ rated university.

You may check the official website of the college (http://kuk.ac.in/) to clear your doubts.