Xiaomi India — defective set of mi note 5 received

Address:

New Delhi, Delhi, 110067

I deeply regret saying that i purchased a redmi note 5 yesterday night from mi store, basant lok, vasant vihar, new delhi, delhi 110070. After seal was opened, i saw that the slot for sim 2 was not working. I informed about the same to the shopkeeper and he tried to insert the sim but the sim 2 slot did not read it. I asked him to help me with this issue and he suggested me to visit the mi service centre (Shop no. 33, 1st floor, maharishi dayanand marg, corner market malviya nagar, malviya nagar, delhi 110017), which i did today itself and informed the manager of the service centre beforehand. When i went their he said there was a damage in the sim slot and denied any repair or replacement even under warranty and when contacted the shopkeeper he blatantly lied and said that he was unaware of any such problem. I understand the terms and policies of mi, but at the same time i fail to understand that even without my fault and after immediately informing the authorities about the problem in the phone i was denied any help. I am asked to pay a repairing fee of ₹6, 000.
This is a mental, physical and monetary pain i am currently dealing with from rushing one place to another in search of help for a phone that i bought not even 24h ago.

I don't know who is to be held responsible here. Inr 6000 is a huge amount and there is no point i spending to repair something that i didn't break. Pleas help us in getting the phone either replaced or repaired, and if you don't we will be left with no option but to adopt to legal measures against the shop and redmi india.