Navigation: Leave Management -> ASS - Bulk Leave / On Duty Booking -> Booking History.
It is common scenario that there will be a need to cancel leaves which were booked for previous dates. Employees cannot cancel their leaves for previous dates. But there is a provision for HR to cancel the leaves of any employee for the previous dates.
In bulk leave booking page (Leave Management -> ASS - Bulk Leave / On Duty Booking -> Booking History) HR will have that provision. Please follow this URL to know more details.