As many as 72 new coronaviruscases were detected in Maharashtra on Tuesday, 59 of them in Mumbai alone, taking the total number of COVID-19 patients in the state to 302, a health official said.This is the largest increase in the number of cases within a day probably in the country, the state official said.Besides Mumbai, Ahmednagar reported three cases, while two cases each came to light in Pune, Thane, Vasai, Virar and Kalyan-Dombivali cities, he added.