The due dates to claim deductions are extended to 30th June 2020 from 31st March. So can I do the tax loss harvesting for FY 2019-20 during April 2020 also?
The due dates extension is for compliance due dates for FY 2019-20 and making tax-saving investments. The FY 2020-21 will begin from April 2020 - meaning any Income or loss realized from 1st April 2020 will be considered for FY 2020-21.
Therefore the losses realized for tax-loss harvesting in April 2020 cannot be treated as loss of FY 2019-20.
Hope this helps:)