Ecommerce App Development for Android

I need an Android app. I would like it designed and built. PROJECT DESCRIPTION I need an Android app. Only experienced people may bid here. No advance payment or milestone will be given without checking the desired work. I m looking for an android application for ecommerce to be developed. All the features should be given like meesho, flipkart and amazon. There should be a seller panel also in the app. Where sellers could register on our app for selling there products. There should be an option to sell on whatsapp and facebook also like we get the same feature on meesho app. There should be an option to invite friends using mobile msgs and social media also. Otp authentication should be there using twitter digits. Admin panel should be there. Logo and other image designing will be done at ur end only. Code will be given to us after development.