First of all you should khow that flipkart is a online shopping site it is not a site of producing any product.it is just online shipping any product.you think why you order any products from this site let me help you for chose any site for buuy any products those are : -
1) In this site you can get a lot of product for chose anything
Ex: shoes, mobile, laptop, books etc
2) there has home delivery avilable, cash on delivery , credit card, debit card for payment for any bank
3) you can return back your product if and only if your products get faults
4) you will get many band in this site you can chose any brand any product.if your product getting any default you get back your money
Thats all
If you want to buy something that I have only flipkart.com