I haven't used any back cover yet so it will be difficult to say from images or description alone. Need personal feedback from users themselves.have you tried this link?
http://buy.mi.com/in/accessories/0-6543-0-0-2
I purchased the back cover from mi.com, its a simple plastic cover to protect against drops. Quality is quite bad, it is loose from the side near the buttons (manufacturing defect).I haven't used any back cover yet so it will be difficult to say from images or description alone. Need personal feedback from users themselves.