Privilege Leave Rules In Banking Industry

all question related to banking industry.
how many times in a calender year PL can be availed ?
total no. of days this leave can be availed at a stretch?
can sanctioned PL leave be cancelled?
how many days prior leave application should be submitted?
if already availed PL for stipulated times in a year, can PL be availed on medical grounds?
on which grounds sanctioned PL leaves can be cancelled & is it binding on the employee?

1-twice a year & third time after sanction from your CA
2-depends on your balance pl
3-yes
4-30 days
5-no, pl is not granted on medical grounds, if reimburesemnt is sought,otherwise yes