Dear applicant although we know Computer Science Engineering is a very widely chosen stream but considering the two Institutes I would suggest you to choose Civil in NIT Calicut. As it is a well ranked Institute,reputed and well maintained by the college authority as well. When comes to placements average salary packages offered are nearly 8-9 LPA for Civil Engineering branch also, the Faculties involve yourself into research works and your academic experience would be overwhelming.

https://www.careers360.com/university/national-institute-of-technology-calicut

Good luck!!