You should have waited for another 16 days. You should approach a competent and experienced service lawyer, with all record and give inputs in person. Your lawyer shall defend you. Company shall have to issue you notice /legal notice and file a case to recover their loss. Companies do exert pressure in such situations so that employee come running to them.
You may check the termination clause in your appointment letter. If employer can terminate by tendering notice of termination or notice pay in lieu of it, same is implied for employee.
Lodging a complaint with police is one thing and proving the charge is another thing.
Company can charge you for having caused loss and they have issued a statement by email to you. Company shall have to prove the loss with proof of refund. These clients must be those who were in touch with you. You can apply your resources discreetly and confirm if they have obtained refund, and obtain a confirmation even if by email in case no refund is obtained as on date of email sent by company.
For the SMS received by you, you can ask your lawyer to talk to the person and if the person is actually a Police Official, send your lawyer to police station and obtain copy of the complaint and check if it entered in register of police station on the date of complaint/ next day and relate it to the date of SMS. If the facts are otherwise the person is impersonating as police official which is crime. You can also check with police station under whose area o/o your company falls, to confirm, if any complaint is submitted and obtain copy of the complaint. You can apply your resources in mobile telecom company and o/o Police commissioner and find out in whose name the connection is issued.
You shall have valid and strong residence to approach Police Commissioner and charge the police official and company. You can even report the incidence to Home Minister. This shall build enough pressure on the company and in specific whose name appears on the email sent to you.
You may check the SE Act of your state, certified standing orders of the company, and relate the notice mentioned with notice period as in your appointment letter. Certified standing orders are to be displayed at the entrance, and may be kept at HR page of employee portal/intranet of the company, and may be available with some old employee of the company. Employee can obtain these and employee rule book from concerned HR personnel/HR Head.
It shall be appropriate to approach a lawyer as ap.