This discussion clarifies the due dates for GSTR 9C filings for the financial years 2017-18 and 2018-19. The original due dates were 31st January 2020 and 31st March 2020 respectively. It also notes that the GSTR 9C due date has been extended on a state-wise basis, with specific new dates of 3rd February, 5th February, and 7th February mentioned.