Xiaomi India — My xiaomi mobile redmi note 3 is not repaired after 40 days.

Address:	Kolkata, West Bengal, 700029
Website:	Jatin Das Park Kolkata

I have submitted my redmi note 3 in mi service center hazra kolkatta - infotel located at jatindas park, kolkata on 07.09.2016 at 17:09:24.

But after 40 days service center is still saying that they will deliver my mobile on 02.11.2016. And they wrote this date of delivery on jobsheet. I have attached my job sheet.

I am old customer of mi. This problem hurting very much. I bought mobile for internet and calling but due to this fault i am completely unable to do internet which i neesd frequently. I also need compensation for my problem.
Please resolve my this problem. Thank you sir