According to some of my friends studying at NIT Calicut. It is one of the best NITs for Computer Science. 

• It has a placement record of 90%. 
• They provide great job opportunities through on-campus placements. 
• NIT Calicut is especially known for its computer science. 
• According to NIRF ranking it is one of top 5 CS offering NITs. 
• The highest placement is around 20 LPA and the average package is around 10 LPA. 
• The faculty is very good, especially the senior most professors. 
• Most of them have PhD and are renowned in their field.

In general CSE is good in NIT Calicut and is opted by many students. Many top notch companies also participate in their placement program. These include Microsoft, IBM, Cognizant, Capgemini, Oracle, Accenture and many more.