Muthoot — they should release my submitted documents

Myself joti yadav i had joined the company (Muthoot finance ltd) in aug 6 2018 and worked there till 6 march 2019, and
I had reigned from the company muthoot finance ltd due to my pregnancy, mentally pressure.
But the company did not respond or communicate to the mail or massages for my document which is submitted to company.
One of senior employee of (Muthoot finance ltd) has called and saying you will submit 2 month salary to muthoot finance ltd.
Really it is not expectation from the company. If i am not well and can not continue of my job. How he will asking for payment.
Apart from. They should release my submitted documents. I have trying to talk to the hr of the company for the last 1 month but there is no response from her or
The company hr-they do not receive my phone. Today after repeated calls, i have required my document in future.

Could you please suggest a way out.