Where Should I complain against this fraud?

I ordered medicines worth Rs.57000/- on 1/06/2017 and made the payment through check on 5th June 2017. As the despatch of medicines got delayed from the company I called them up and they said that they are in the process of despatching the products and assured me that they would despatch it at the earliest. When I did not receive the medicines I again called the company but they would not receive my phone calls and also revert to the emails sent by me. I kept calling the company every day, since they were not replying my mails. But no body from the company would respond. If at all somebody picks the phone call then they would give a standard reply that “your case is very old, we have no time now, call later”I have sent the company repeated reminders but they do not show any concern. This way 5 months has completed. I have also informed the company that legal action will be taken against them and also told them that if they are unable to supply the products/medicines then I asked them to return the money which was paid to them. But they don't seem to be bothered at all. I would be grateful if you would kindly advice me how to go about to recover my money from this fraud company. When I searched the internet about this company I found that it is a sole proprietorship company.Ltely he has blocked all my mobile numbers so that I cannot reach him. Waiting for your valuable advice.