Never buy anything from https://bookmyoffer.com. This is some fraud website which sells duplicate/fake products.
There was an advertisement in bookmyoffer.com site that they are selling MI 10400mah power bank for 31Rs.Delivery charge was mentioned as 549Rs and for total 580Rs for the product.
Market price for the same product is 999rs, so i felt its a good deal.I ordered the stuff and got it delivered in a week. What i got is a fake product which doesnt even work.Its just a look alike stuff.