How is NIT Calicut for North Indians?

The answer depends upon whether you are a girl or a boy. Girls from North India are very few in number. Apparently, the number of North Indian girls is almost around 12 or 20, out of 200 girls per year. So, you will have a good bond with them. 

The South Indian students are amiable and can assist in times of need. The major upside is that the institute does not have any ragging complaints. However, the food is not up to the mark. 

The number of boys in the institute is comparably higher. However, there are complaints of ragging among the boys in NIT Calicut. 

So, it depends upon the companions you have in the institute. Having said that, NIT Calicut is an extremely good place otherwise. It has a bunch of helpful and supportive people. Other than that, it comes with amazing cultural and technical fests. You should be open to making friends, despite cultural differences.