Dear Student,

See VIT Vellore is private institute is a private college whereas rest 3 are Central Government Colleges.

NIT Calicut has better ranking among all 3 NITs.

FEES-

NIT Calicut:5.42 Lakhs

NIT Nagpur:5.38 Lakhs

NIT Surat:5.38 Lakhs

VIT Vellore: 7.80 Lakhs

MEDIAN SALARY-

Median Salary of NIT Calicut is 8.98 Lakhs.

Median Salary of NIT Nagpur is 8.53 Lakhs.

Median Salary of NIT Surat is  7.45 Lakhs.

Median Salary of VIT Vellore is 6.50 Lakhs.

You can find a detailed comparison between these four here-

https://www.careers360.com/compare-colleges?college=137-151-144-21-course=7363-8069-7737-1349

Find more here:

https://www.careers360.com/university/sardar-vallabhbhai-national-institute-of-technology-surat/btech-chemical-engineering-course

https://www.careers360.com/university/national-institute-of-technology-calicut/btech-chemical-engineering-course

https://www.careers360.com/university/visvesvaraya-national-institute-of-technology-nagpur/btech-chemical-engineering-course

https://www.careers360.com/university/vellore-institute-of-technology-vellore/btech-computer-science-and-engineering-course

Also you may check other options using-

JEE Mains College Predictor tool:

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer