Sony India — sony tv 43w800d motherboard

I brought sony tv 43w800d in year feb 2017. The motherboard for same stopped working in aug 2019. Just after 1.5 year of normal usage. I checked with service center, they told company stopped producing this model and it's components. I am really disappointed by sony which has huge brand value and producing faulty products. And they stop manufacturing so they don't have to support even 2 year old products. As a user how can i trust the brand. I feel cheated by rs62000 (Price of tv). I bet even if it was under warranty they would not have been able to replace motherboard, because they don't have one.
Is there a rule which says manufacturing company has to support all components for x year??