hey,

not all the NITs accepts CMAT score , only NIT durgapur do accept same  ,here are the list of top B-school accepting CMAT score

1. IIHMR university, jaipur

2. institute of management technology , ghaziabad

3. prin LN welingkar institute of management development and research, mumbai

4. great lakes institute of management , chennai

5. goa institute of management , goa

6. KJ somaiya institute of management studies and research , mumbai

7. amrita school of business , coimbatore

8. institute of public enterprise  hyderabad

for more colleges kindly go though the link

https://bschool.careers360.com/articles/top-b-schools-accepting-cmat-scores

good luck!