Bollywood megastar Amitabh Bachchan tested positive for COVID19 on June 11th. After Big B, along with son Abhishek Bachchan, daughter-in-law Aishwarya Rai Bachchan and granddaughter Aaradhya tested coronavirus positive, BMC declared their house Jalsa as a containment zone. Informing fans about his COVID19 results, Big B tweeted earlier, "I have tested CoviD positive. Even Abhishek Bachchan informed fans that he …