Amitabh Bachchan's fans from Kolkata organises 'mahamritunjay yagna' for the speedy recovery of the actor and family from COVID-19

Amitabh Bachchan (77) and his son, actor Abhishek Bachchan (44), are undergoing treatment at the Nanavati Hospital in Mumbai after testing positive for COVID-19, which they revealed on Twitter on July 11.