Mumbai Dabbawalas performed prayer for Amitabh Bachchan's good health on July 13.
Amitabh Bachchan was tested positive for corona on July 11.
He is admitted to Nanavati hospital.
Abhishek Bachchan, Aishwarya Rai Bachchan and Aaradhya Bachchan were also tested positive for the virus.
