Ecommerce website with the the best in class Ui/Ux

Looking for a full stacker around Cochin, Kerala to develop an Ecommerce website(Probably around 1000 products with different categories..Clothing, footwears etc). The most important criteria is the UI/Ux of the website. It has to be as stunning as possible. So to cut short, it should be developed with something like a PHP based backend for admin panel access(product addition etc which will eventually be used as the database for the mobile app that we’re building)