Xiaomi India — Mi note 3 - not working

I bought a brand new Mi Note 3 on December 20, 2016. I used it for just a few days and one day it got very hot and just hanged. It went off soon and some liquid came out from it. It never switched on again.
I took the phone to the Mi authorized service center and the service person told me that it is damaged due to some liquid that is gone inside. I told him that it became very hot and went off and some liquid came out rather than went in. The service person opened the phone and told me that there is some moisture and due to which the short circuit happened. Its winters in Delhi and there is no question of sweat going inside the phone.
I feel cheated that I bought a phone and it got damaged due to no fault of mine and service center refused to service or change the defective parts/components and told me that it may cost me around 11, 000/- for repairs.
I don't know what to do, can some one please help me.