If you have failed the exam in first attempt, u will be given an arabic letter for grievance application which has to be processed within 30days. (i.e, a chance to write the exam again in 30 days)

Please ask the details in the enquiry section in MMUP office ground floor. (Counter no 9 & 10 is for engineering commitee)
They will explain u with the procedure.
If u failed to apply for grievance within 30days, u have to wait 6 months for the next exam.