You can issue a legal notice on the company and claim the same in the scenario that they don't adhere to the contractual terms or don't issue a reliving letter.
For any further queries, feel free to contact me.
You can send legal notice through your advocate and can claim your experience letter
You can mail me for advise on
Send them a legal notice. For any further assistance, feel free to contact me on my e-mail "firstname.lastname@example.org"
Shubham Pabbi & Associates