BSE Sensex was at 45,541.25, down 1419.44 points or 3.02%. The Nifty was at 13,314.10, down 446.45 points or 3.24%.European shares slumped as the rapid spread of a new strain of the coronavirus led to a more stringent lockdown in England and a travel ban from many countries, while a Brexit trade deal still hung in the balance.Also Read | Inside the rumble in India’s coding jungleUK Prime Minister Boris Johnson will chair an emergency response meeting on Monday to discuss international travel and the flow of freight in and out of Britain.Battling their own surges in coronavirus cases, Asian nations including Japan and South Korea said they were closely monitoring a new super virulent strain of the virus identified in Britain, but none.