This document provides information about e-filing of income tax returns in India. It defines e-filing as the process of electronically filing income tax returns through the internet. It outlines the different types of taxpayers that can e-file including individuals, HUF, companies, firms, AOP, and BOI. It also summarizes the different ITR forms for individuals, HUFs, firms, and companies. Finally, it provides a high-level overview of the procedure for registering and e-filing income tax returns online through the incometaxindiaefiling.gov.in website.