Since you have not mentioned any particular branch, I assume that you are getting to choose from all the branches at both institutions. Both the colleges have their own pros and cons.

Being a student of NIT Surathkal, my brother has often talked about its greatness.

Campus:

• NIT Surathkal has a big campus spread across 300 acres of land. There is a private beach, gym, swimming pool, and everything that you need for recreation.
• There is a high-speed WiFi facility as well.
• There are separate departments for all the major and minor subjects.
• The campus of NSIT Delhi is not as big as the campus of NIT Surathkal and is spread across 150-200 acres of land. It has a lush green campus which is aesthetic along with wide roads.

Academics:

• NIT Surathkal is strict when it comes to academics. Along with your GPA, your projects will also be given equal importance.
• In both colleges, you can freely do your project in any domain.

Faculty:

• NIT Surathkal has permanent HODs, associate professors, and professors. The faculties are well experienced.
• Do not forget that more than professors, your hard work matters most.

Coding Culture:

• The coding culture is at par in both institutions.
• There have been participants at GSOC and other competitions. NIT Surathkal has nearby malls, pools, games, etc. for leisure.

Location:

• NSIT clearly wins at this as it is situated in Delhi. It has easy access to everything.
• However, NIT Surathkal has a beach too for relaxation.

Overall both the colleges are equally good. But NIT Surathkal has a clear edge over NSIT in various aspects.