Mitashi — Mitashi - 65 inch tv panel problem

I have bought a Mitashi TV(Model No MIDE065V22-4KS[protected] On the eve of Onam) from their dealer named Nandilath G Mart, Kannur Branch, Kerala. Just after nearly one year there was problom with Panel and the same has reported at Gopu Nandilath G Mart and they have noted in their Complaint Register( Second time they have entered my complaint in Page No. 86 of same Register. . Now months has been elapsed, they were not either they have not replaced the TV [ which is under warranty period] or given another TV same rate and specification.Latest enquiry revealed that they are evasive and cheating me in these months. Now they says that Mitashi Company has been closed and all. What shall I do ? I intends to register case against the Manager, Nandilath G Mart, Kannur BRANCH through Consumer Court Kannur. I shared my grief and frustration against Nandilath G- Mart ( once trusted dealer of Home Appliances) through Social Media . Now most of my friends supported me and will not buy anything from Gopu Nanndhilath outlets.