Xiaomi India — Long Repair Time for RedMI Note 3

Website:

www.mi.com/in

I, Shankhadip Sarkar ([protected]@gmail.com) have booked a RedMI Note 3 at Amazon.in on 18.05.16, which was delivered on 22.05.2016, and within 2 months it started malfunction (abnormal shutdown).
The Service Centre took care of it on 13.08.2016.
Job Sheet No.: 13081605
Service Centre: Infotel Services, Shop No. 1, Ground Floor, Infinity Benchmark Building, Sector V, Salt Lake, Kolkata 700091.
Waiting time was 15-40 days as mentioned in the Job Sheet.
But till date neither they are providing me the repaired handset nor a replacement handset.