Dear madam,
Suggest you take following actions:
* Don't give any reaction to her rude and revengeful acts. Ignore her.
* Pass on tactfully verbal message that her BGV check by future employer, the true facts will be revealed
* If your boss is dragging cold feet on the proposed warning letter , don't issue it unless you show courage of conviction and justify issuing the same with accompanying risks.
* Don't yield to any pressures from her to pay leave salary on CTC, if your policies don't permit. Go strictly by them.
* Make her FNF settlement as per applicable policies and precedents and let the release letter be couched in simple words. Avoid being revengeful by mentioning the untoward behaviour of hers in the release letter as it will absolutely be in bad taste .
The departing lady employee's conduct , though unacceptable by any standards, if you ignore it will lose its punch and wear out naturally.
Regards,
Vinayak Nagarkar
HR and Employee Relations Consultant