What will happen if someone misses the internal exam at VIT-Andhra Pradesh University?

So, the things here is the internal marks are divided greatly. There are three written exams: CAT-1, CAT-2 and FAT. Out of 100 marks, these exams contribute 60 marks. Theory contributes 75 marks. So, the rest 15 marks is internals in theory. Now, the teacher can take three assignments or quizzes bef