Sony India — Controller Card failure with in 2 years

Address:

Gurgaon, Haryana

I have purchased one SONY LED TV (Model - 40R452A) & (Serial Number 4318354) and this was not getting on. Once service engineer visited and infomed that controlled card is faulty and same needs to be repalaced by paying around INR 7000/-. My basic questions are: how can controller card get failed within 2 years? What is the reliability of SONY brand? Why should i be punished for 7k which was not planned when I bought this TV. Surprise to me how this company takes care for quality of products? How Sony brand is still liked by people?