Dear Sir,
Greetings from Company Vakil !!
So first & foremost, I would suggest you to issue a Legal Notice with help of an advodate to the concerned person, Also go ahead and lodge a complaint with the cyber cell for the cyber crime commited by the other person.
To get more insights on how to take a Legal Action in your regard, we would require more detailed facts of the case, so feel free to contact Company Vakil Cyber Crime experts via Phone call, email, SMS or whatsapp.