Every company has their own policy regarding the notice pay. During notice pay, an employee is not supposed to avail any leave unless some emergency situation has arised beyond your control. If you were absent due to illness or any other genuine reason, you should talk to your reporting head and HR personnel and submit the medical certificate. If the company is convinced, they may waive off the leave salary.
As far as your PF dues are concerned, no authority can withhold your provident fund dues and in my opinion, the pf dues cannot be attached by the court of law also.
Please make an attempt to solve this issue ammicably.