Hi Anbu,
Yes, you are right. :)
'Lenvica HRMS' is capable of calculating the attendance with your rules. You need to define this rule in 'Attendance Settings'.
In 'Attendance Settings' screen there is a group called 'Attendance Type – Daywise Calculation', there you need to select the second option 'Calculate with values specified' and specify the range in %.
In your case, the ranges are 0% to 50% = 0 day, 50% to 75% = 1/2 day, 75% to 100% = 1 day. It is explained with an example in that screen itself.
I hope that this can help you….
Thanks