Paytm Mall - Ingenuine product issued

We had ordered sony **" full HD Led TV bearing order number ********** from Paytm mall on **th September ****. Accordingly we received the product on *th October ****. As informed we waited for the authorized guy to install the television on **.**.****. Later after installation we found the product is defective with some screen panel issues. We did complained to paytm. They asked us to contact the sony. We did accordingly.When the authorized person from sony company visited on **.**.****, he mentioned that the warranty period of the product has been expired on September ****. According to the billing information the date of sale in the invoice is *-**-****. When the product is being bought on *-**-**** the warranty should be * year i.e upto *-**-**** as mentioned by the company. But the issued product Warrenty was already over. The mistake is from the paytm, but they are not accepting it instead they are asking us to contact the Sony. We cant even claim any warrantied service as of now.Following are the images of invoice and warrenty in support of the issue. Please do the needful.