Hello Riya, I think you meant say how you can develop an eCommerce company and then how you can grow your business.
See first you have to hire an individual or a company which can develop and design a eCommerce website for you. There are few well known platforms like woo commerce, Shopify, magento and big commerce.
Once your website get ready then you need to start marketing of your E commerce website as well that will increase the sale of your products. Once you done all this then you can start optimizing your website with help of SEO and SMO.
You could go for other services as well like catalog management services, Customer support services,Market place management etc





