Clicking on attendance will bring you to Classes Tab. Here list of all the class comes down that are happening. By Default the date would be current date only. To mark attendance for previous dates you can just change the date.
On clicking mark attendance. The list of all students will come who are supposed to be in the class. Accordingly you have mark whether the student is present, absent,
Click on “Mark Student Attendance” to get full view of the students in within the branch