Koryo — Television display fail

TV model No:KLE32DLCHN7 bought from Big Bazar Calicut Kerala with extended warranty on[protected] is not working. It's display has stopped turning on. I contacted the seller they told me to contact the electronics department of the store.There I was asked asked to call the customer care service of the company .when I contacted this number after two hours of trying on phone the person there gave me the number [protected] to call and get the product ID .I tried this number all the afternoon today but no one attended. I have been after this for four days please do something for the redressal of my grievance. I would like to get the TV replaced or repaired immediately.