A private limited company is asking if they can file their Income Tax Return (ITR) for the Financial Year 2019-20 after the 31st of March 2021 deadline. The advice given is that it's not possible to file directly after this date. To file a belated return, a 'condonation of delay' procedure is required, especially if there's a refund involved. It's strongly recommended to file before the 31st of March 2021.