Hello Aspirant,

See the marks /percentile varies every year because the quality of the candidates are different. The difficulty level of the examination is different. There are many factors such as the number of seats in college play a vital role in deciding the cut offs.

If I had to guess you need to score atleast 200 to get a decent branch out of 300 in NIT surathkal.

To get more information about the cut offs you can check out the given below -

https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-surathkal

If you have any queries you can comment in comments section,I will reply you back.