Facebook id

What exactly did he put on the facebook account he created? Did he post her picture as the profile picture? Did he use her name as well as your friends name? Did he send her messages from that account? How did she know about the fake account?

What exactly did he put on the facebook account he created?

He has mentioned comments from his wife side for his father and brother. comments like his fater business and brother business. comments like my father and brother ruined my life by harassing my husband. My husband filed divorce case. 

Did he post her picture as the profile picture?

Yes, her picture was posted as profile picture.

Did he use her name as well as your friends name?

Yes, her name was used in profile.

Did he send her messages from that account?

No, from that id, no message was sent to her but to some other local people. 

How did she know about the fake account? 

Actually some freind of his wife came to know about id and told his wife.

Contact a good lawyer who is actually familier with IT act and proceed from there. To prove it in court that he was the one who created the account will take a long time as the court has to get its records from Facebook and then the IP has to be traced back to your friend. 

In all, get a lawyer and  and ask your friend to be quite and not reveal anything about to the case to anyone, including the police. 

The charges under section 66C and 66D of I T Act can be imposed on your cousin since he has created fake profile.Consult CYBER LEGAL CONSULTANT for further advice.