Hello sanket ,thanks for asking this question on this platform.actually admission in any government engineering College depends upon the cutoff of that year and your category so firstly your category plays a big role here .now you can go through this website ..

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

I hope this will help you thanks 

For various Categories You can consider following marks, Note that this are only PredictedMarks and actual Marks may vary to any extent:

                               Home state quota                                    Other state Quota 

General:                     210                                                                  240

OBC:                          170                                                                  210

SC                              120                                                                 150

ST                               No fixed Pattern assume close to 120 Marks.