Tablighi Jamaat members, who were shifted to Sultanpuri quarantine centre and had tested negative, are now donating their plasma for treatment of covid-19 positive patients. Till now, four members of Tablighi Jamaat have donated their plasma. According to doctors, blood can be retrieved from a person after two weeks of recovery. Plasma therapy involves transfusing plasma retrieved from the blood of persons who have recovered from Covid-19 into a person suffering from the disease.