This document is the Income Tax Compliance Calendar for March 2021. It outlines crucial due dates for various tax-related activities, including TDS/TCS deposits, advance tax payments, and filing of returns. It also covers deadlines for specific forms and compliance requirements like linking PAN with Aadhaar and declarations under the Vivad se Vishwas scheme. This calendar is essential for taxpayers, businesses, and finance professionals to ensure timely compliance and avoid penalties.