Sir ,
NIRF stands for NATIONAL INSTITUTE RANKING FRAME WORK is a department which comes under.
MHRD so the rankings there are changed every year.

As per career 360 the rankings are shown after deep research and talking to students .
So in my opinion you should see both the list and compare the name Of colleges and try enquiring about those colleges which are common in both the list. Because the colleges which are common in both the lists will be the best options for you.
Here I am providing the link for both.

• nirf
• https://www.nirfindia.org/2019/Ranking2019.html
• Career360
• https://engineering.careers360.com/colleges/ranking?ici=search_trending

the career 360 sites have also shown the nirf ranks
Therefore it will be easy for you to compare.
Hope it helps .