I purchased this phone from Flipkart on 28-02-2015 my order ID: OD202195738838035000. due some network issue I had submitted my MI4 device to Xiaomi Service center(MI Exclusive) Kalkaji New Delhi, after 15 days I had received from the service center, and after few days my cell doing worst behave. e.g. Phone Hang, Touch not working, audio sound jerk. Network issue, MIUI not working, and many more.
Its is illogical when you buy any product from Xiaomi, price will be very high and few few day you see it very less.