For developing a e-commerce site like flipkart,amazon what to learn step by step help me soon I am a beginner

Answer 1

^_^ → https://www.hostgator.com/blog/get-ecommerce-website-running/

Answer 2

You need front-end languages, HTML, CSS and Javascript.
back-end, server script such as PHP or Node.js
and database either SQL like Mysql or NoSql like MongoDb.