It would be difficult to provide you the exact information about the qualifying cutoff & admission as JEE Main is being conducted twice by NTA for the first time.

Based on this score your probable rank will be 218,893 - 248,893 and your probable category rank range will be 71869 - 79369, With this rank the chances are less to get a seat in NITs.

NOTE: The Rank Predicted is on the basis of the expected total number of students i.e. 1152650 appearing in the JEE Mains April Session.

The above information is given to assume JEE Main paper I score, In case you are asking for JEE Main Paper II then let me know.

Good Luck!