Emergency crews in New York were scrambling Monday to rescue marooned residents from what authorities called the "blizzard of the century," a relentless storm that has left nearly 50 people dead across the United States and caused Christmas travel chaos. Delhi woke up to chills this morning, its streets wrapped in a blanket of dense fog that brought visibility down to a minimum. India will hold a mock drill today to check how well prepared are the health facilities to deal with any spike in COVID-19 cases. Health Ministers of all the states will participate in the mock drill.