Hello Aspirant, NIT surat is better than the SPIT Extc. NIT have a good infrastructure, experienced faculty and good placement compare to SPIT. For the fast growing industry you have to choose NIT Surat. 

I hope this will help you. 

Hi Aspirant! I am not gonna directly tell you which one to choose instead I will guide you how to choose between the two. Look! Placements matters the most so you should give priority to the one which has better placements records, for this you can refer their official website. You should also consider their rankings as it is provided considering many parameters.