Sansui India — sansui 55" ultra 4k smart tv not switching on

Address:

5600068

Our 55" sansui ultra 4k full hd smart tv is not powering on. We have tried the sansui customer care many times with all methods email, sms & phone but no response. Call center phone is always busy [protected]. Purchased from flipkart on 16/04/2017. Warranty is 1 year + 2 years = 3 years. We are not able to contact the customer care at all by any means.