Bihar's massive revision in its Covid deaths figure to over 9,000 has become controversial with the 72 per cent jump raising more questions. Eleven people, including eight children, were killed when a double-storey apartment building collapsed on another structure at a slum in Mumbai's Malad late last night. A six-minute walk test, no use of antiviral drug Remdesivir are part of centre's guidelines for treatment of Covid-positive children.