SURAT: Surat city on Sunday recorded merely four Covid-19 cases with no fresh cases recorded in six civic zones. According to Surat Municipal Corporation (SMC) officials, Rander and Athwa zones only recorded two cases each on Sunday. As per SMC data, six Covid-19 patients were discharged from different hospitals in the city on Sunday while nine were still under treatment. No Covid-19 case was recorded from Surat district on Sunday.