To check online exam-wise reports, go to Reports > Online Examinations then click on Result Report. Here select the Exam, Class, and Section and then click on the Search button. Here you can see exam details like Admission No, Student Name, Class, Total Attempt, Remaining Attempt.
Once you click on the Generate Rank button, the rank will be generated for all the students.
Note- If two or more students have the same number then their rank will also be the same.