An e-commerce website is a website that allows the buying and selling of products or services online. There are many examples of e-commerce websites, which include:-

1. Amazon: Amazon is a leading e-commerce website that sells a wide variety of products across the world.

2. Flipkart: Flipkart is India's largest e-commerce website that sells electronics, clothing, books, and more.

3. eBay: eBay is an online marketplace where users can buy and sell products from each other.

4. Walmart: Walmart is a major retailer that sells products online through its website.

5. Target: Target is a major retailer that sells products online through its website.

The following are required to file income tax return online:

PAN Card: It is a mandatory document that authenticates you as identity and address proof for filing income tax returns.

Aadhaar Card: This is an optional document that can be used as identity proof.

Form 16: This is a certificate that shows your income and deductions. Your employer provides you with Form 16.

Bank account details: You will use your bank account to pay your return.

Copy of previous year's return: A copy of the previous year's return is also required.

Internet Connection: You will need an internet connection to file your return on the Income Tax Department website.

1. We live in an eCommerce-centric world where all types of business models are growing at a rapid pace.

2. This model involves electronic transactions between two customers. Typically, they transact through a third party that provides a platform to those two customers. Websites selling second-hand items are examples of the C2C eCommerce model.