Pavilion dv6-3130TX
Its keyboard is not working properly

I have purchased hp pavilion dv6 -3130 Tx laptop thee months ago from an authorised dealer of HP in Chiplun. My laptops keyboard has stopped functioning. I tried to give complaint about it but the dealer is not taking it seriously. Then I tried to approach the company but there no response at all. Now I to get my laptop repaired or replaced. It is under warranty period.