Missed my exam today...

I got out of home at time but some mishap happened (I don't have energy to disclose and explain it) because of which I was late to exam hall. Reached at 2:35pm and I was not allowed to give exam. I am writing this while returning home. I don't know what to say.

Please someone tell me if I can give rest two exams of Audit and FM & SM or not. Like if I didn't give this exam, will I get to write rest two exams? Will it be counted?