It would be difficult to predict the exact qualify marks or rank as JEE Main is being conducted twice by NTA for the first time.

Based on your score your probable rank will be 250,004 - 280,004 and your probable category rank range will be 4886 - 5886. With this rank the chances are less to get a seat for the core branches in NITs. You can check your other best possibilities with JEE Main college predictor tool with the given below link.

https://engineering.careers360.com/jee-main-college-predictor

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

Good Luck!