One of my friends with a GATE score of 670 took admission to NIT Calicut. The academics in the field of industrial and management are good but the placements are not good enough. The faculty of NIT Calicut is exceptionally well, knowledgeable and experienced. They are way better than the faculty of NIT Trichy or ISM Dhanbad. 

Placements for M.Tech courses are very bad and it is the same in all institutes. The only exception is flagship IITs and NIT Trichy. Therefore, one should opt for NIT Trichy than NIT Calicut. 

Therefore, if you are interested in a job right after the course, go for NIT Trichy. If you want to study further in this field, then NIT Calicut would be a suitable choice.