Dear Tejas, he would definitely like to know why you didn't turn up to the College, right? In all fairness, he as your teacher has the right to know the reason why you were absent from school. We are guessing you do not have a valid reason or else you wouldn't be asking this question. So you meet him tomorrow and then be upfront. It is better to tell the truth because you needn't remember what you said. This might not be the answer you have been looking for but this is the only solution to the situation.