The Indian actress, a former Miss World and one of Bollywood's most famous faces, is being treated at Mumbai's Nanavati Hospital, ANI agency reports.
Her daughter Aaradhya has also been taken to hospital, PTI agency reports.
Aishwarya's husband Abhishek and father-in-law Amitabh Bachchan, both also famous actors, have been in hospital since Saturday with the virus.
On Sunday, 77-year-old Amitabh Bachchan - a Bollywood superstar who has achieved global fame during his long and illustrious career so far - tweeted that he had tested positive for the virus.
