Step 0- Login as "Admin"
Step 1- Go to "Student" Click on "Administration"
Step 2- Click on "Inactive" Select "Make Student Inactive"
Step 3- Enter "Admission no." or Select "Class and Student" Click on "Go"
Step 4- Select "Date" and Give the "Reason"
Step 5- Click on "Nullify Fee Structure"
Step 6- Click on "Make Inactive" and Click on "OK"

To Make Active student again
Step 7- Click on "Inactive" Select and Select "Inactive Student report"
Step 8- Click on "Make Active" and scroll the screen
Step 9- Click on "Make it Active" and click on "OK" button