Xiaomi India — Mobile phone is powered off automatically

Address:	500056
Website:	www.mi.com

Hi sir my name is mahesh reddy. I have purchased mi note 3 (Gold, 32 gb) mobile phone on 3-sep-2016 through online. Order id:[protected]. But mobile got problem with in two months. The problem is power off the mobile automatically when using the mobile. The mobile has been repaired 4 times in mi service center. But they did not solve the problem. But warranty for the mobile is one year. The mobile price is rs.12000/-. Now what can i do to get benefit.
Service center details:

Served by: shekher,
Begampet, hyderabad

My contact details:

Cell num:[protected],
Email id: [protected]@gmail.com