Employer of the Company (Appointing Authority, MD, Promoters, Owners) himself or thru its competent and empowered personnel in say HR is duty bound to supply the appointment letter 1+1 copy. You were expected retain the original and return signed and accepted copy.
Employee while freshers are usually naïve. Even after experience should always consult elders in advance on each and everything till they are properly informed.
Now you may write to this man in HR (preferably by letter thru redg. post or at least from personal email id, and not from official email id and due to the reason that it is your personal matter ) narrating your representations (date wise) and ask to handover the original appointment letter at once within say next ……………2 working days……………..with a copy to Head-HR, Appointing Authority, MD………………..
The original appointment letter is your property forever and you don’t have to return it to anyone in company.
If this man in HR does not adhere to your representation escalate to Appointing Authority, MD……………………..and demand original appointment letter within say………3 days. Later you may issue notice……………..which you can also send……………..or thru your lawyer.
You may mark a copy to Labor Inspector, Inspector under Shops and Commercial establishments Act of your state…………………President and Secretary of trade Union………………….and your lawyer.
You are with wrong employer.
Firm up your next venture as ap.
Are you being provided with salary/pay slip?
Demand the same, PF number, ESIC number/card….also.