Bhubaneswar: The Bhubaneswar Municipal Corporation (BMC) on Tuesday started rapid antigen testing of local residents at nine urban health centres as the Odisha capital has reported a surge in COVID-19 cases, an official said.The city has so far reported 4,171 COVID-19 cases of which 1,339 cases are active as 2,807 people have recovered from the disease and 22 have died.BMC has appealed to citizens to come to their nearest urban health centres (UPHC/UCHC) and get the testing done free of cost for COVID-19.While nine centres started operating on Tuesday, seven more will start functioning from Wednesday, the official said.Of the nine local health-care facilities, six are Urban Primary Health Centres (UPHCs) and three are Urban Community Health.