Bihar's daily Covid-19 cases continued to decline as the state registered 3009 fresh infections on Friday, pushing the tally to 8,05,750, while 11 more fatalities took the death toll to 12,173, a bulletin issued by the state health department said. The state had reported 3,475, 4,063 and 4,551 new cases on January 20, 19 and 18 respectively.