NIT Calicut equally puts preference to most of the major festivals shared by different kinds of religion.
Whether it is Christmas, Onam, Id, Diwali, or other major festivals, NIT Calicut usually offers a one-day holiday to students. But, since the majority of students at the institute belong from the South Indian area, Onam is naturally the biggest festival. It is one of the major and biggest celebrations at NIT Calicut. Other than that, students also obtain holidays for the festival of Dussehra.
Apart from festivals, students usually get holidays by the end of their semesters, on national holidays, or on national emergencies, if any.