Marvel Stitch - Wrong item delivered in the package

I had ordered a pyjama set from a website called marvelstitch.com on **th September, **** which costed me *** INR via COD. The package was delivered using Shadowfax Surface delivery service on **th September, **** stating it contained the pyjama set. The order ID was correct on package so no suspicion there. I paid in case to delivery person and opened the package in front of him. Is aw that product is a saree instead to pyjama set. I asked the delivery person to take the package back but he asked me to file a return. However, on the site, all contact numbers are invalid and no mail is being responded to. They are a fraudulent company duping people. I found that their actual store is called Heer creations and has an office (may be fraud as well) in Rohini, Delhi.