LG Electronics — am complaining about my tv

This is prathish kumar from chennai. I bought lg tv (43 lh 547) on[protected] at shahs show room chennai. But now the tv has been faulty with some issues. (Video is not coming). I raised a complaint at lg service center, the lg guy came and told me the issues and he told me that the motherboard of the tv has been faulty you need to replace that... The amount should be around rs 27000. Let me know one thing, the 43 inch lg led tv has only 2 years of guarantee? We never use that tv hardly. We used 3-4 hours a day only. We want exact solution for this issue, else we planning to go to the consumer court. We spoke to the lg customer, they also didn't respond properly. Pls reply with the perfect resolution.