Can one get admission into NIT Calicut via the Kerala State Entrance Exam (KEAM)?

No, you will not get admission to NIT Calicut with your KEAM score. Because NITs and IITs are institutes of national importance, admission is done through National level entrance examinations rather than regional entrance tests. For admission into NITs, the score of JEE(Main) is considered, whereas, for IITs, the score of JEE(advanced) is considered.

Students who completed their XI and XII exams outside of India can apply for DASA seats using their SAT Subject Test scores, and they can also apply for a scholarship through the CIWG scheme, which reduces their tuition to that of JEE students.