What are the finance-related deadlines that are approaching on December 31?

December 31 has been set as the deadline for filing belated or revised income tax returns for thousands of taxpayers, putting pressure by increasing last-minute traffic on the filing system. Additionally, it's also the last date to file GSTR-9 and GSTR-9C, whose reporting framework has changed multiple times this year. December 31 is also the deadline for company law filings.