As a General category students you should have 40% of 200 marks. You will have to score 40 marks in each- MAT and SAT and overall 80 to qualify. Your score is sufficient to qualify stage 1, But the selection for the second round depends on the state to state.

It should be noted that there might be changes in cutoff due to change the Exam Pattern.

 
Good Luck!

Dear Ayush, 

Please specify your state and category so we can guide you accordingly and determine chances of conversion. 

Previous year cutoff trends shared below for reference. 

https://school.careers360.com/articles/ntse-cutoff