This document outlines the various Goods and Services Tax (GST) return forms that must be filed by registered persons in India. It lists 11 main return forms including: Form GSTR-1 for outward supply details; Form GSTR-2 for inward supply details; and Form GSTR-3 for monthly returns including tax payment. It also notes that some forms like GSTR-2A will be generated by the GST system, while others like the annual GSTR-9 return must be filed by the end of the next financial year. The document provides contact information for further discussion and notes that the details are based on the draft GST rules which are subject to change.