Point the camera at a Roll Number Slip QR, a Class QR to open Daily Roznamcha, or a Teacher ID Card QR to mark Teacher Attendance
A Roll Number Slip QR marks that student Present for today only if their class has a paper scheduled today per the Date Sheet (scanning the same student twice never creates a duplicate). A Class QR opens that class's Daily Roznamcha for today — only class-level totals are ever shown, never individual student information.