Xiaomi India — Phone not getting repaired

Address:

New Delhi, Delhi

I have purchased a Redmi2 phone from amazon on[protected]. phone was working fine till[protected], but suddenly display goes black & nothing was visible on screen. i contacted service center, they took the phone & asked me to wait for 4-5 days to get it repaired. after 5 days i got a phone call stating that phone is liquid damaged & it will be repaired on chargeable basis and it will cost 3648. i told them that there was no water damage done to phone & still it is working only the display is not coming. they refused to repair without charges. kindly help me out to sort out the matter