This document provides a comprehensive calendar of compliance due dates for August 2021, covering Income Tax, Goods and Services Tax (GST), and other statutes. It details key dates for TDS/TCS deposits and issuances, various GST return filings (GSTR-1, 3B, 7, 8, etc.), and other statutory form submissions. This guide is invaluable for businesses, tax professionals, and company secretaries to ensure timely adherence to all regulatory requirements.