The Congress on Wednesday attacked the Modi govt on its handling of the Covid pandemic. Questioning the health minister's assertion on Tuesday that the decision to impose a nationwide lockdown prevented 14 to 29 lakh Covid-19 cases & 37 to 78,000 deaths, Congress leader Anand Sharma asked what was the scientific basis for this conclusion. During a debate in the Rajya Sabha on the Covid crisis, Sharma demanded that the house must be informed about how the govt arrived at this conclusion