Hai rashmi1988malik ,
, ? compliance, behavioral abnormality
First understand taking Eptoin medication
regularly is important to prevent seizure
If he is taking regularly and even then he have seizure attack then dose of medicine need to be adjusted / add on another antiepileptic drugs may be required
I hope he was already investigated for finding the cause for seizure. If not he may require to evaluate by a Neurologist
Behavioral abnormality may be a part of seizure attack. Adequate control of seizure would improve behavioral problem. If it persist after adequate control of seizure also then dont worry it can be controlled by Anti-psychotics at low dose.
My best wishes for your father.