Filing of Return for the Assessment Year 2019-20 ( FY 2018-19)

Sir,

One of my relative, aged about 75 years and a cancer patient, did some share transactions  during FY 2018-19. She filed returns up to  AY 2018-19 ( FY 2017-18), thereafter she fell ill and till date could not file IT Return for AY 2019-2020. Can her Return be filed now ? Whether date has been extended for filing Return for AY 2019-20.